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【单选题】
The war lasted so long that people were tired of it. Everyday there was large crowds of demonstrators _____against the war.___
A. protecting
B. prescribing
C. protesting
D. prosecuting
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C
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We worked hard and completed the task ________.___
A. in the time
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The manager will not __________ us to use his car.___
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__________ her and then try to copy what she does.___
A. Mind
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A. behavior
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___________ the War of Independence, the United States was an English colony.___
A.
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【单选题】
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【单选题】
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【单选题】
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【单选题】
光缆吊挂,挂钩间距为()mm,允许偏差±50mm。___
A. 400
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【单选题】
光缆分纤箱安装时,分纤箱的箱体下沿距离地面应不低于()m,以减少人为影响。___
A. 1.2
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【单选题】
光缆分纤箱以壁挂方式安装时,不可设置于()。___
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【单选题】
光缆敷设时,()米的长杆档,两侧电杆上各预留光缆6~8米。___
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【单选题】
光缆敷设时,盘放预留光缆的弯曲半径应不小于光缆外径的()倍。___
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【单选题】
光缆交接箱编号原则:小区名称+()+两位数字序号。___
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光缆交接箱成端时,主干光缆应成端在光缆交接箱的()。___
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光缆交接箱基础与人手孔之间用20mm的半硬塑管连接,分为前后2排,分布在基础的合理位置,便于()。___
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光缆交接箱内,光缆与接地线应()引入,弯曲半径不得小于线缆的最小弯曲半径,不得损伤线缆护层,进入光缆交接箱的线缆禁止裸露在外。___
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光缆交接箱内成纤盘成端光纤熔接完后,裸纤长度不小于()cm。___
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光缆交接箱已开破的进缆孔全部用()进行封堵,并做到整体平整,表面光滑。___
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光缆入箱必须设置吊牌,吊牌吊挂在光分纤箱外()mm处的光缆上。___
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【单选题】
光缆损耗主要是由光纤本身、连接部件和()造成的。___
A. 外界环境
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光缆引上时,必须有()米以上的钢管保护,并且钢管内光缆要穿子管防护。___
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光缆在交接箱内固定时,应将加强芯穿进螺丝固定孔内,将螺丝拧紧,预留钢丝长度不超过()cm。___
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光缆在进光缆交接箱接箱处须要做预留,预留线上吊牌位置为预留圈的()。___
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光缆在经过某些特殊位置时,必须绑扎牢固,同时用保护管进行保护,这些位置不包括()。___
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【单选题】
光纤的()就是光纤受到不均匀应力的作用,光纤轴产生的微小不规则弯曲.其结果是传导模变换为辐射模而导致光能的损耗。___
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光信号是以光功率来度量的,一般以为单位()。___
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【单选题】
互联网协议中的()被认为是不可靠的机制,因为它不保证数据发送成功。___
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机顶盒开机时有中国移动或者中国移动网络电视伴侣、微信新功能大屏生活,从今天开始的启动界面,但过一段时间后,无任何显示,以下处理方法正确的是:___
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【单选题】
基础积分为正向累加积分,安全积分、服务积分和质量积分为(),综合积分由加分项、扣分项组成。___
A. 正向累加
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