【单选题】
A vSphere administrator has been using vSphere in evaluation mode and now wants to deploy an environment that provides the same features. Which edition of vSphere provides similar functionality to evaluation mode? ___
A. Enterprise Plus
B. Enterprise
C. Standard
D. Essentials
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相关试题
【单选题】
An administrator has just configured the IP address on an ESXi host from the Direct Console User Interface. How can the configuration be validated as correct without any additional tools?___
A. Add the host to vCenter Server and if it works, then all networking settings are ok.
B. Select the Test Management Network option from the DCUI.
C. Connect to the host with the vSphere Client and click the Test Network option.
D. Use PowerCLI to connect to the host and initiate a network test.
【单选题】
An administrator is installing vCenter Server for an environment that has 40 ESXi 6.x Hosts and 150 virtual machines. Which database would meet the minimal requirements needed for this task? ___
A. vFabric Postgres
B. Microsoft SQL Express 2008
C. Microsoft SQL Server 2014
D. Oracle 11g
【单选题】
What is a requirement when enabling a Virtual SAN cluster in an existing High Availability (HA) and Distributed Resource Scheduler (DRS) Cluster? ___
A. Disable DRS and HA before enabling Virtual SAN
B. Enable DRS before enabling Virtual SAN
C. Disable HA before enabling Virtual SAN
D. Enable Storage DRS before enabling Virtual SAN
【单选题】
The vSphere administrator attempts to connect to an ESXi host via an SSH client and receives the following security alert: The vSphere administrator needs to determine whether the RSA key fingerprint shown in the security alert is the fingerprint of the intended ESXi host. Which tool should the vSphere administrator use? ___
A. Direct Console User Interface
B. vSphere Client
C. vSphere Web Client
D. vSphere Management Assistant
【单选题】
An administrator needs to monitor traffic on vSwitches in a vSphere 6.x environment. Which option, if configured, would accomplish this task? ___
A. Forged Transmits
B. MAC Address Changes
C. Promiscuous Mode
D. Notify Switches
【单选题】
What is true regarding datastores on ESXi 6.x? ___
A. NFS 4.1 datastore does not support Fault Tolerance (FT)
B. VMFS3 and VMFS5 datastores can be newly created
C. NFS datastore can be concurrently mounted using NFS 4.1 on one host and NFS on another
D. NFS 3.0 datastore does not support Fault Tolerance (FT)
【单选题】
An administrator is cloning and configuring five new web server virtual machines. What would be the benefit of configuring resource shares for the new VMs? ___
A. To prioritize access to a resource during contention.
B. To guarantee access to a resource during contention.
C. To prioritize access to a resource before contention occurs.
D. To guarantee access to a resource before contention occurs.
【单选题】
An administrator logs into the vSphere Web Client and sees the warning shown in the Exhibit. During a change control window, the warning was addressed. What should be done to verify that the host is no longer showing the warning? ___
A. Run a Remediate host operation.
B. Recheck the compliance of the host.
C. Restart the host to get rid of the warning.
D. Install VMware tools to clear the warning.
【单选题】
A vApp named Sales has a Memory Limit of 32 GB and a CPU Limit of 12,000 MHz. There are three virtual machines within the vApp: <Sales-DB -- Has a memory reservation of 20 GB. > <Sales-DC -- Has a memory reservation of 8 GB. > <Sales-Web -- Has a memory reservation of 8 GB.> Which statement is correct? ___
A. All three virtual machines can power on, but will have memory contention.
B. All three virtual machines can power on without memory contention.
C. Only two of the three virtual machines can power on.
D. Only one of the virtual machines can power on.
【单选题】
You are editing the management network configuration of an ESXi 6.x Host from the vSphere Web Client. You mistakenly put the incorrect VLAN in place for the management network. What action do you need to take to correct this? ___
A. You need to manually edit the configuration on the host with command line utilities.
B. No action is required. By default ESXi rolls back configuration changes that disconnect the host.
C. The ESXi host system configuration will need to be restored to the factory configuration to fix the issue.
D. The change can be reverted in the vSphere Web Client by simply editing the switch again.
【单选题】
What is true about resource pools created on a Distributed Resource Scheduler (DRS) cluster?___
A. A root resource pool is created with the specified values.
B. A root resource pool is automatically created using the aggregate total of the ESXi host resources in the cluster.
C. A root resource pool is automatically created using the aggregate total of all resources in the datacenter.
D. A root resource pool is not needed when creating resource pools on a DRS cluster.
【单选题】
An administrator attempts to enable Enhanced vMotion Compatibility (EVC) on a cluster. The operation results in a compatibility error, as shown in the exhibit. What is the likely cause of this error? ___
A. The CPUs in the ESXi host are not AMD CPUs.
B. The CPUs in the ESXi host do not support hardware virtualization capabilities.
C. The XD/NX CPU features have not been enabled in the BIOS of the server.
D. There is no shared storage between the hosts in the cluster.
【单选题】
What condition would prevent an administrator from creating a new VMFS3 datastore on an ESXi 6.x host using the vSphere Web Client? ___
A. A VMFS3 datastore cannot be created on an ESXi 6.x host.
B. The VMFS3 kernel module is not loaded.
C. A VMFS3 datastore cannot be mounted on an ESXi 6.x host.
D. VMFS3 datastores are not compatible with virtual machines created on an
E. SXi 6.x host.
【单选题】
During a new vSphere Distributed Switch configuration, where does the Maximum Transmission Unit (MTU) value get modified? ___
A. Uplink Settings
B. Switch Settings
C. Portgroup Settings
D. NIC Teaming Settings
【单选题】
A small company wants to use VMware products for its production systems. The system administrator needs to recommend a solution that will deliver High Availability to the company's production applications. What is minimum vSphere offering that will support this requirement? ___
A. vSphere Essentials
B. vSphere Essentials Plus
C. vSphere Hypervisor
D. vSphere Standard
【单选题】
Which scenario shows a reason for VMware Tools failing to install? ___
A. Virtual machine has a CD-ROM configured.
B. Guest OS Antivirus is blocking the VMware Tools installation.
C. Guest OS has 64-bit ldd (list dynamic dependencies) utility installed.
D. Virtual machine is powered on.
【单选题】
An administrator is configuring an ESXi 6.x host to use multiple NICs to resolve a management network redundancy error. After configuring a second NIC, the server is not able to communicate when the primary connection is taken down. The administrator analyzes the Exhibit shown here. Based on the exhibit, what is the likely cause of the issue? ___
A. vmnic4 is not attached to a vSwitch.
B. vmnic2 is not connected to a physical switch.
C. E1000 is the incorrect NIC
D. river for this card.
【单选题】
What information is required as part of an interactive ESXi 6.x installation? ___
A. Keyboard layout
B. IP Address
C. Root password
D. DNS information
【单选题】
What is the default load balancing policy for a newly created VMkernel port on a vSphere Distributed Switch? ___
A. Route based on orginating virtual port ID
B. Route based on IP Hash
C. Route based on source mac address
D. Route based on physical NIC load
【单选题】
An administrator deploys vCenter Server using the embedded Platform Services Controller. After testing the deployment for a couple of months, it is determined that the environment would be better served with an external Platform Services Controller. What should the administrator do to meet this new requirement? ___
A. Deploy a fresh instance of vCenter Server with an external Platform Services Controller.
B. Perform a fresh install of an external Platform Services Controller.
C. Migrate the embedded Platform Services Controller to an external Platform Services Controller.
D. Upgrade the embedded Platform Services Controller to an external Platform Services Controller.
【单选题】
Why are some virtual machines orphaned after rebooting a High Availability (HA) enabled host? ___
A. The Orphaned virtual machines have HA restart disabled.
B. The Orphaned virtual machines moved recently and the change did not persist.
C. The host is attached to failed storage.
D. The host just came out of maintenance mode.
【单选题】
Which vSphere 6 Standard Edition feature will allow an organization to ensure that critical multi-threaded applications have the maximum possible uptime? ___
A. Fault Tolerance
B. High Availability
C. Distributed Resource Scheduler
D. App HA
【多选题】
An application running in a virtual machine is experiencing performance issues. When utilizing performance monitoring utilities, it is noted that the CPU Utilization of the application is at 100%. Which two scenarios are probable causes of the CPU contention for the application? (Choose two.)___
A. There is a network I/O constraint.
B. There is a storage I/O constraint.
C. There is insufficient disk space assigned to the virtual machine.
D. The application is not virtualization aware.
【多选题】
A Fault Tolerance (FT) virtual machine with four vCPUs is experiencing high latency when performing ICMP and Application tests. What are three potential causes that may be attributing to this latency? (Choose three.)___
A. The FT network has insufficient bandwidth and is running on a 1GB Link.
B. The FT network is on a particularly high latency link.
C. The FT network has been configured with Network I/O Control.
D. The FT virtual machine is running an e1000 network adapter.
E. The
F. T virtual machine is running on poor performing network-based storage.
【多选题】
A virtual machine is experiencing performance issues. The following performance metrics are observed: <CPU usage value for the virtual machine is above 90%> < CPU ready value for the virtual machine is above 20%> Which two activities will likely resolve the performance issues? (Choose two.)___
A. Set a CPU reservation for the virtual machine.
B. Increase the CPU limit on the virtual machine.
C. Decrease CPU shares equally for all virtual machines on the host.
D. Increase CPU shares equally for all virtual machines on the host.
【多选题】
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 6.0 and the administrator wants to upgrade to the latest version possible. The environment contains several ESXi 6.1 hosts. Which two options are available to ensure that the upgraded switch will be compatible with these hosts? (Choose two.)___
A. Upgrade the vSphere Distributed Switch to 6.0
B. Upgrade the ESXi 5.5 hosts to version 6.0, then upgrade the vSphere Distributed Switch to 5.5
C. Upgrade the vSphere Distributed Switch to 5.1
D. Upgrade the
E. SXi host switches to 5.5, then upgrade the vSphere Distributed Switch to 5.5
【多选题】
An administrator attempts to create a Thick Provisioned Virtual Disk (VMDK) on an NFS datastore; but it fails. Which two reasons would explain the failure? (Choose two.)___
A. Datastore is on an NFS 3 storage server that does not support Hardware Acceleration
B. Datastore is on an NFS 4.1 storage server
C. Only VMFS datastores support "Thick Provisioned" VMDK
D. The NFS datastore was not created on a "Thick Provisioned" device
【多选题】
Which two NFS Protocol versions does vSphere 6 support? (Choose two.)___
A. Version 3
B. Version 3.1
C. Version 4
D. Version 4.1
【多选题】
Which three operations occur during a cold migration of a virtual machine? (Choose three.)___
A. The virtual machine disks are moved if the datastore is being changed.
B. The virtual machine is registered with the destination server.
C. The source virtual machine is removed from the old hosts.
D. The virtual machine hardware is upgraded.
E. The virtual machine files are quiesced prior to the migration.
【多选题】
A 4 GB Memory virtual machine is experiencing extended memory issues, as shown in the Exhibit. What potential issues could be attributed to this memory pressure?___
A. A limit is imposed on the virtual memory of this virtual machine.
B. The Balloon driver has been uninstalled.
C. A limit has been imposed on the Virtual CPU of the virtual machine.
D. Storage IO control has been enabled for the virtual machine causing the swapped memory.
【多选题】
You are creating a virtual machine in the Web Client using the New Virtual Machine wizard. Which two steps are required? (Choose two.)___
A. Select a valid name.
B. Select a cluster for the compute resource.
C. Select a network adapter.
D. Select the virtual machine compatibility.
【多选题】
An administrator has been given requirements to configure vMotion for a new virtual machine. The configuration should: <Provide Network Redundancy Use VLAN 550> <Be secured against anyone trying to spoof communication The vSwitch1 configuration is shown in the Exhibit.> Which three changes should be made to meet the stated requirements? (Choose three.)___
A. The VLAN ID must be set appropriately.
B. The default values for MAC Address Changes and Forged Transmits must be altered.
C. The teaming and failover adapters must be set appropriately.
D. The Traffic Shaping configuration must be altered.
E. The Load Balancing Policy must be set appropriately.
【多选题】
Which three traffic types are available services options when configuring a vmkernel port? (Choose three.)___
A. Provisioning Traffic
B. Virtual Volumes Traffic
C. vSphere Replication NFC Traffic
D. Virtual SAN Traffic
E. FCoE Traffic
【多选题】
An administrator logs into the vSphere Web Client, but is unable to see any hosts and clusters. Which two options could fix the problem? (Choose two.)___
A. Verify that the client web browser and vCenter Server are in the same broadcast domain.
B. Verify that the vCenter Server system is registered with the same Platform Services Controller as the vSphere Web Client.
C. Log in to the vCenter Server as a user within the Active
D. irectory domain.
【多选题】
Which three VLAN Tagging modes are available in vSphere 6.x? (Choose three.)___
A. External Switch Tagging
B. Private VLAN Tagging
C. Virtual Switch Tagging
D. VXLAN Tagging
E. Virtual Guest Tagging
【多选题】
Which two statements are true about VMFS5 datastores on ESXi 6.x? (Choose two.)___
A. Virtual Disk (VMDK) size can be larger than 2TB.
B. Datastore extent size can be larger than 2TB.
C. Only Physical Mode Raw
D. evice Map (Passthrough-RDM) can be larger than 2TB.
【多选题】
Which two statements are correct when turning off a Distributed Resource Scheduler (DRS) Cluster? (Choose two.)___
A. The resource pool hierarchy of the DRS cluster is maintained.
B. The resource pool hierarchy of the DRS cluster is removed.
C. The affinity settings of the
D. RS cluster are removed and not maintained when DRS is re-enabled.
【多选题】
An administrator is creating a new Virtual SAN cluster on a Layer 2 network. There is an existing Virtual SAN cluster on the same Layer 2 network. Which two actions would allow the new Virtual SAN cluster to coexist with the older cluster? (Choose two.)___
A. Change the default Multicast Address on the new Virtual SAN cluster.
B. Change the default Unicast Address on the new Virtual SAN Cluster.
C. Create a separate VLAN for each cluster.
D. Create an ARP Alias for the Virtual SAN VMkernel Network Adapter.
【多选题】
A vCenter Operations Manager 5.7 environment is upgraded to vRealize Operations. After the upgrade, the analytics services fail to start. Which three steps must be taken to resolve the problem? (Choose three.)___
A. Take the vRealize Operations cluster offline.
B. Delete the activity persistence files.
C. Bring the cluster back online.
D. Remove any unresponsive nodes.
E. Stop the CaSA service.
【多选题】
An organization has an ESXi 6.x host that contains two resource pools. The host is being relocated to a DRS cluster. What two actions can be taken to integrate the host into the cluster, and what would happen to the existing ESXi resource pool hierarchy as a result? (Choose two.)___
A. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be deleted.
B. Create a resource pool for the ESXi host's virtual machines and resource pools. The resource pools present on the host will be deleted.
C. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be preserved.
D. Create a resource pool for the
E. SXi host's virtual machines and resource pools. The resource pools present on the host will be preserved.
推荐试题
【单选题】
中国共产党在新民主主义革命不同时期提出的土地政策共同点是___
A. 体现中国共产党的民主革命纲领
B. 消灭封建剥削
C. 维护农民基本利益
D. 促进社会经济发展
【单选题】
下列表述中不符合鸦片战争前夕形势的是___
A. 欧美资本主义国家迅速崛起
B. 自然经济在中国仍然占统治地位
C. 在中英正当贸易中中国处于入超地位
D. 英国向中国走私鸦片在激增
【单选题】
中国近代史上中国人民第一次大规模的反侵略武装斗争是___
A. 虎门销烟
B. 三元里人民抗英斗争
C. 香港工人大罢工
D. 台湾人民反抗日本割台斗争
【单选题】
“中国不败而败”是指下列哪场战争___
A. 中日甲午战争
B. 鸦片战争
C. 中法战争
D. 第二次鸦片战争
【单选题】
辛亥革命取得的最大成就是___
A. 推翻了封建帝制
B. 促进了资本主义的发展
C. 使人民获得了一些民主自由权利
D. 打击了帝国主义的殖民势力
【单选题】
近代中国社会的两大历史任务是①、废除封建剥削制度②、实现国家富强、人民富裕 ③、推翻三座大山④、争取民族独立、人民解放 ⑤、推翻帝国主义在中国的统治 ___
A. ②③④
B. ②④
C. ①③④
D. ③④⑤
【单选题】
近代中国反侵略失败的内部主要原因有①、社会制度的腐朽②、外国势力的强大③、经济技术的落后 ④、人民抵抗不力⑤、清政府的腐败无能___
A. ①⑤
B. ①②③④⑤
C. ②③④⑤
D. ①③
E. ①②⑤
【单选题】
资本 - 帝国主义对中国的侵略包括①、政治控制②、文化渗透③、军事侵略④、外交封锁⑤、经济掠夺___
A. ①②③⑤
B. ①②③④
C. ①③④⑤
D. ①②⑤
E. ①④⑤
【单选题】
下列关于洋务运动叙述正确的是①、洋务运动是封建统治阶级为了维护自己的统治而进行的一场自救运动 ②、是由资产阶级发动的 ③、口号是“自强”和 “求富” ④、触及到了封建统治的根基 ⑤、客观上促进了资本主义的发展 ___
A. ①③④
B. ①②
C. ①②③
D. ①②③④
【单选题】
同盟会的政治纲领是①．驱除鞑虏 ②．恢复中华 ③．创立民国 ④．建立联合政府 ⑤．平均地权___
A. ①②③⑤
B. ①②③④
C. ①②③④⑤
D. ②③④⑤
【单选题】
中国同盟会纲领中涉及到的问题有①．推翻满洲贵族的统治 ②．建立资产阶级共和国 ③．驱逐占据中国的帝国主义势力 ④．提出了资本主义的土地纲领 ⑤．发展资本主义工商业的主张___
A. ①②③⑤
B. ①②④
C. ①②③④⑤
D. ②③④⑤
【单选题】
抗战时期，正面战场和敌后战场的主要区别是①．抗战的领导不同 ②．抗战路线不同 ③．作战方式不同 ④．战略地位不同 ⑤ ．战场范围不同___
A. ①②③⑤
B. ①②④
C. ②③④
D. ①②③④⑤
【单选题】
中国的抗日战争是世界反法西斯战争的重要组成部分，其表现是①．中国战场年平均牵制日本的陆军的 74% 以上 ②．日军在海外作战中损失的 287 万人中，有 150 万人伤亡在中国战场 ③．中国为盟国提供了大量的战略物资和军事情报 ④．苏联出兵击败日本关东军 ⑤．美英法等国向中国提供了经济援助或军事合作___
A. ①②③⑤
B. ①②④
C. ②③④
D. ①②③④⑤
【单选题】
近代中国社会阶级关系发生的深刻变动表现为①．地主阶级出现了一批因军功而升迁的官僚地主和城居地主②．不少自耕农失去土地，向贫农或雇农转化，有些成为产业工人的后备军③．新产生了中国资产阶级④．新产生了中国无产阶级___
A. ①②③④
B. ①③④
C. ①②③
D. ①④
【单选题】
中国工人阶级具有世界无产阶级的共同优点，但又有其特点，主要是①．深受帝国主义、封建势力和资产阶级三重压迫和剥削，其革命性最强②．它人数虽少，但相对集中，便于形成革命的力量和传播先进的思想③．同农民有着天然的联系，便于结成工农联盟④．先进生产力的代表者___
A. ①②
B. ①②③
C. ①②③④
D. ②③④
【单选题】
中国近代史的起点是___
A. 虎门销烟
B. 鸦片战争
C. 辛亥革命
D. 中华人民共和国诞生
【单选题】
所谓“国中之国”是指___
A. 帝国主义在华的势力范围
B. 帝国主义强迫我国开放的通商口岸
C. 租借地
D. 帝国主义强迫清政府割让的土地
【单选题】
近代中国的社会性质是___
A. 封建社会
B. 资本主义社会
C. 半殖民地半封建社会
D. 新民主主义社会
【单选题】
中国的关税权自主权开始遭到破坏是在哪个条约___
A. 《北京条约》
B. 《天津条约》
C. 《马关条约》
D. 《南京条约》
【单选题】
鸦片战争以后，一股“向西方学习”的新思想萌发，其主要目的是：___
A. 重新认识世界，寻求强国御侮之道
B. 学习西方先进技术，发展资本主义经济
C. 了解西方国家，与之建立平等的外交关系
D. 学习西方的先进的政治制度，进行社会改革
【单选题】
对洋务派兴办洋务事业的指导思想最先作出比较完整表述的是___
A. 冯桂芬
B. 李鸿章
C. 林则徐
D. 魏源
【单选题】
近代中国的历史表明，要争取争得民族独立和人民解放必须首先进行___
A. 反对帝国主义侵略的斗争
B. 反帝反封建的资产阶级民主革命
C. 反对封建主义压迫的斗争
D. 反对资产阶级的社会主义革命
【单选题】
在甲午战争后，严复翻译的《天演论》所宣传的重要思想是___
A. 师夷长技以制夷
B. 中学为体，西学为用
C. 天下兴亡，匹夫有责
D. 物竞天择，适者生存
【单选题】
李大钊在《庶民的胜利》中写道：“……须知这种潮流，是只能迎，不可抗拒的。”这种潮流是指___
A. 新文化运动
B. 社会主义革命
C. 实业救国
D. 资产阶级民主革命
【单选题】
义和团“扶清灭洋”口号突出反映了当时社会最主要矛盾是___
A. 帝国主义与中华民族的矛盾
B. 帝国主义与清政府的矛盾
C. 封建主义与人民大众的矛盾
D. 农民阶级与教会势力的矛盾
【单选题】
对“民权主义”理解正确的是___
A. 推翻清王朝的封建专制统治
B. 进行政治革命，推翻封建帝制，建立资产阶级共和国
C. 平均地权、核定地价
D. 打击帝国主义在华势力
【单选题】
武昌起义的主力是___
A. 同盟会会员
B. 留学生
C. 新军
D. 人民大众
【单选题】
1919年五四运动爆发的直接导火线是___
A. 北洋政府与日本签订“二十一条”
B. 华盛顿会议上中国外交的失败
C. 北洋政府拒绝恢复《临时约法》
D. 巴黎和会上中国外交的失败
【单选题】
中国新民主主义革命阶段的开端是___
A. 护国运动
B. 护法运动
C. 五卅运动
D. 五四运动
【单选题】
在新文化运动中率先举起马克思主义旗帜是___
A. 毛泽东
B. 蔡和森
C. 陈独秀
D. 李大钊
【单选题】
作为中国新民主主义革命领导核心的中国共产党是___
A. 社会主义思潮与中国革命相结合的产物
B. 新文化运动与中国革命相结合的产物
C. 马克思主义与中国工人运动相结合的产物
D. 中国知识分子与工人阶级相结合的产物
【单选题】
“中国现存的各政党，只有国民党是比较革命的民主派，比较是真的民主派”这一论断的主要依据是___
A. 孙中山领导的国民党进行了不屈不挠的反封建斗争
B. 孙中山代表各阶级、各阶层的利益
C. 国民党在广东建立了革命根据地和军队
D. 国民党代表民族资产阶级和小资产阶级的利益
【单选题】
中共确定建立抗日民族统一战线的方针是在___
A. 八七会议
B. 遵义会议
C. 瓦窑堡会议
D. 洛川会议
【单选题】
抗战初期两条不同抗战路线的根本区别是___
A. 是否抵抗日本侵略
B. 是否依靠人民群众
C. 是否合作抗战
D. 是否积极抗战
【单选题】
1947 年 6 月，中国人民解放军开始实行战略反攻的战略意图是___
A. 与敌军主力进行决战
B. 全面扩大解放区
C. 解放中原，进取华中
D. 由内线作战转向外线作战
【单选题】
在中国共产党的领导下，中国人民推翻了三座大山，于1949年成立了中华人民共和国。这标志着___
A. 社会主义制度的基本建立
B. 美国遏制中国政策的失败
C. 新民主主义革命的基本胜利
D. 社会主义三大改造的开始
【单选题】
在中共七届二中全会上，毛泽东指出党的一切工作的中心从此应是___
A. 恢复和发展生产
B. 从乡村转移到城市
C. 建立中华人民共和国
D. 完成生产资料的社会主义革命
【单选题】
洋务派在中央的代表是 ___
A. 左宗棠
B. 曾国藩
C. 奕訢
D. 张之洞
【单选题】
歌曲《国民革命歌》中唱道"打倒列强，除军阀；国民革命成功，齐欢唱。"这首歌诞生于___
A. 辛亥革命时期
B. 北伐战争时期
C. 抗日战争时期
D. 解放战争时期
【单选题】
东北地区曾流传着这样的民谣：“苦难十四年，日本和汉奸，压迫老百姓，有苦不能言。”其中这“十四年”开始的标志是___
A. “九一八事变”
B. 七七事变
C. “八一三事变”
D. 西安事变
