相关试题
【判断题】
采用直接法编制经营活动产生的现金流量时，一般以营业收入为起点调节与经营活动有关项目的变动，计算出该项目
【判断题】
用银行存款购买两个月内到期的国债,不会使现金流量表中现金净流量发生增减变动
【判断题】
现金流量表的分析填列法是直接根据资产负债表、利润表和有关会计科目明细账的记录分析计算出现金流量表各个项目的金额，据此编制现金流量表的方法
【判断题】
为了清晰反映构成所有者权益各组成部分当期的增减变动情况，所有者权益变动表采用矩阵形式列示
【判断题】
销售净利率是20%，资产周转率是1次，权益乘数是2，则净资产收益率是40%
【判断题】
一般认为，资本保值率越高，表明企业的资本保全状况越好，所有者权益增长越快，债权人的债务越有保障
【判断题】
如果企业的负债资金的利息率低于其资产报酬率，则提高资产负债率可以增加所有者权益报酬率
【判断题】
杜邦分析体系是利用各主要财务比率之间的内在联系，综合分析企业财务状况的方法。建立财务分析指标体系
【判断题】
沃尔比重评分法是将选定的财务比率用线性关系联系起来，并分别给定各自的分数比重，然后通过与标准比重进行比较，确定各项指标的得分及总体指标的累积分数，从而对企业的信用水平做出评价的方法
【填空题】
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1 In our class,most discussions and activities take place in assigned small groups,These groups provide a supportive and safe environment that （） learning
【填空题】
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9 As the finance ministry rejected the defor its "lack of clarity",it[ ]complaint with the Europear Commission that this deal was against the law
【填空题】
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5 State governments and the colleges themselves have [ ] financial help to students with special abilities and those with financial needs
【填空题】
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10 Dogs cannot distinguish the color of trafficlights, so the master must make the decision of when it is safe to [ ] across the road
【填空题】
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6 The committee agreed that his papers
[ ] a wider circulation because of their essential and fundamental interest to a larger audience.
【填空题】
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1 Because women often restrict their diet
In an effort to control weight,they may
Not consume enough iron-rich food and
( ) experience an iron Deficiency.
【填空题】
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8 Americans defend the right to obtain a gun and they have[ ] been willing to turn a blind eye to the harm that people owning guns have caused
【填空题】
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7 The anger and frustration [ ] by the local people who do not understand what is happening to them will be a terrible and dangerous force
【填空题】
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2 Some reform advocates ignore the impact of
Class size on student achievement,and they
are ( ) what they call as a Priority:teacher effectiveness.
【填空题】
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3 Because of easy access to the Internet,the
New breakthrough tq create something
Truly creative ( ) happen anytime now.
【填空题】
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4 Indeed,if teachers want to( ) how far students might get in life, a better measurement than grades might be how hard the students try.
【填空题】
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5 Nature has( ) these animals ( ) a capacity for not showing Fear.
【填空题】
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6 During the weeks of discussion,delegations
from groups who are interested in the
Resolution may call on representatives to
( ) their point of view.
【填空题】
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7 Plato was a superb writer,and his works are
Part of the world’s great literature.Most of
His existing work is ( )Dialogs and letters.
【填空题】
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8 Young people should enter into a broad
Flexible training program,through which
They can learn a lot and be ( ) their future careers.
【填空题】
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9 The young man is very happy and proud to
be ( ) the old professor because he always feeIs great when talking With him.
【填空题】
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10 One day they passed more than 20 villages ( ),and some of these are Said to have stretched for six miles or more.
【填空题】
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7 Being asingle parent,there is no way for her
to ( ) the time and energy she has
devoted to her children for the past 10 years.
【填空题】
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8 It is essential that you start by listening because one of the main ( ) teenagers and their parents face in forming positive relationships is that neither listens to the other.
【填空题】
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9 We all know the dangers of an earthquake: the ( ) to buildings,the troubles can be caused by falling trees,and the terror occurs when the earth actually opens uip.
【填空题】
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10 Not until recently have we realized that the increasing world population may lead to a potential gloomy ( ) for humanity starvation.
【填空题】
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2 It is the development strategy/of the company to ( ) its overseas expansion in order to take a slice of the world market
【填空题】
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3 Nearly six million people go to see the Mona
Lisa every year,attracted by the ( )of her smile.When you're not lodking at her, she seems to be smiling;when you look at her,she stops.
【填空题】
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4 To live with a family whose native language is English is the ideal way to further improve one's English and to gain ( )into its culture.
【填空题】
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5 There is a real need to ( ) academic
achievement in schools and help with the
development of a student's overall character.
【填空题】
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6 Einstein said his scientific discoveries grew
from his imagination rather than from( ),
reason and language.
【填空题】
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1 When the police caught up with him, Mr.Foster had to [ ] that he'd broken the speed limit.
【填空题】
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2 Whenever my boss makes a decision that I don't agree with, I tell him what I really think, though it's [ ] to make him happy by telling him his ideas are always right
推荐试题
【单选题】
[76]管线编号为24"-PR-50022-B1D-C，其中24表示___。
A. 管线尺寸
B. 管线材料
C. 物流代号
D. 保温代号
【单选题】
[77]管线编号为24"-PR-50022-B1D-C，其中PR表示___。
A. 管线尺寸
B. 管线材料
C. 物流代号
D. 保温代号
【单选题】
[78]管线编号为24"-PR-50022-B1D-C，其中B1D表示___。
A. 管线尺寸
B. 管线材料
C. 物流代号
D. 保温代号
【单选题】
[79]管线编号为24"-PR-50022-B1D-C，其中C表示___。
A. 管线尺寸
B. 管线材料
C. 物流代号
D. 保温代号
【单选题】
[80]密封蒸汽外供蒸汽在何种形式下启动___。
A. 负荷低于75%
B. 自身泄漏压力不足
C. 复水器真空度不高
D. A、B二者
【单选题】
[81]冷泵干燥后露点___为合格。
A. -20℃
B. -40℃
C. -50℃
D. -60℃
【单选题】
[82]乙烯机、丙烯机采用___制冷方式。
A. 开式热泵制冷
B. 闭式热泵制冷
C. 水冷
D. 复叠制冷
【单选题】
[83]干气密封为___形式密封。
A. 单面
B. 双端面
C. 二级单端面
D. 浮环式
【单选题】
[84]乙烯临界温度为___。
A. 5℃
B. 9.9℃
C. 11℃
D. 12.3℃
【单选题】
[85]丙烯机C-501停止后，为___，要进行盘车。
A. 防止轴弯曲
B. 不防轴弯曲
C. 防止转子碎
D. 防止转子弯曲
【单选题】
[86]T-203操作条件是___。
A. 高温低压
B. 低温低压
C. 高温高压
D. 低温高压
【单选题】
[87]D-209干燥器在___操作条件下有利于水份吸收。
A. 高温低压
B. 低温低压
C. 高温高压
D. 低温高压
【单选题】
[88]废碱中浓度应低于多少才防止盐结晶___。
A. 0.3
B. 0.15
C. 0.25
D. 0.2
【单选题】
[89]压缩机油路系统酸洗前不需要进行脱脂处理，油路酸洗是为了使系统___。
A. 无砂土
B. 无氧化硅
C. 无油分
D. 金属表面清洁
【单选题】
[91]备用泵盘车的方向一般为___。
A. 顺时针方向
B. 逆时针方向
C. 泵的运转方向
D. 无特殊规定
【单选题】
[92]滑动轴承中加润滑剂作用是减小轴承中的___带走热量，缓冲吸振。
A. 磨擦与磨损
B. 防锈
C. 冷却
D. 密封
【单选题】
[94]C-201润滑油系统高位油槽的作用是___。
A. 提供一定的润滑油压差
B. 润滑油压力低辅助油泵不能自启动时提供润滑
C. 分流部分润滑油
D. 润滑油压力低，辅助油泵自启动前缓冲润滑油压力下降的幅度，保证油压高于联锁值
【单选题】
[95]压缩机油路系统的主润滑油泵的作用___。
A. 由蒸汽透平驱动为压缩机和透平提供润滑油和调速油
B. 由电机驱动，当润滑油压力低时，自启动提供润滑油
C. 由电机驱动，当调速油压力低时，自启动提供调速油
D. 当装置停电，压缩机停车后用柴油机组发电来提供足够的润滑油
【单选题】
[96]截止阀的结构主要由阀体、阀盖、阀杆、___和手轮等组成。
【单选题】
[97]主蒸汽管道的汽水分离器是起___作用的。
A. 起到缓冲作用
B. 分离蒸汽中所带的水分
C. 隔离
D. 无法确定
【单选题】
[98]安全阀起跳压力为压力容器工作压力的___倍。
A. 1.00～1.1
B. 1.2～1.3
C. 1.05～1.1
D. 0.9～1.0
【单选题】
[99]润滑剂不具有下列___作用。
A. 润滑作用
B. 防锈防蚀
C. 防冻
D. 卸荷
【单选题】
[100]有关润滑管理,下列说法正确的是___。
A. 不同标号的润滑油桶可以互用
B. 润滑油使用应遵循三级过滤的原则
C. 设备运行只要有油，长时间不必更换
D. 废油可以随便处理
【单选题】
[101]有关润滑管理，下列说法不正确的是___。
A. 润滑油进厂必须检验其质量指标，合格后方可接收
B. 润滑油转桶时须过滤
C. 润滑油库不需防火设施
D. 进口设备用油应立足国内油
【单选题】
[102]C-201汽轮机入口蒸汽温度正常值___。
A. 270℃
B. 380℃
C. 420℃
D. 510℃
【单选题】
[103]裂解气压缩机开工喷射泵的工作蒸汽为___。
A. 超高压蒸汽
B. 高压蒸汽
C. 中压蒸汽
D. 低压蒸汽
【单选题】
[104]裂解气压缩机透平复水器顶部设有___与大气相通。
A. 安全阀
B. 呼吸阀
C. 防爆膜
D. 大气安全阀
【单选题】
[105]丙烯压缩机的透平动力驱动源为超高压蒸汽，抽气为___。
【单选题】
[106]丙烯制冷压缩机出口放火炬阀的位置设置在___。
A. 丙烯冷剂收集罐顶部
B. 丙烯制冷压缩机出口管线上
C. 出口冷凝器后的管线上
D. 丙烯冷剂收集罐出口管线上
【单选题】
[107]裂解气压缩机“三返一”的返回点为___。
A. 二段吸入罐前
B. 二段吸入罐后
C. 一段吸入罐前
D. 裂解气进料电磁阀前
【单选题】
[108]丙烯制冷压缩机开工喷射泵的工作蒸汽为___。
A. 超高压蒸汽
B. 高压蒸汽
C. 中压蒸汽
D. 低压蒸汽
【单选题】
[109]乙烯制冷压缩机开工喷射泵的工作蒸汽为___。
A. 超高压蒸汽
B. 高压蒸汽
C. 中压蒸汽
D. 低压蒸汽
【单选题】
[110]关于甲醇的解冻机理，下列说法不正确的是___。
A. 甲醇的凝固点较低
B. 其熔点较低
C. 与水相溶
D. 其水合物的冰点较低
【单选题】
[111]润滑油三级过滤中，大桶到贮油槽所用的过滤网规格为___。
A. 30～40目
B. 40～60目
C. 60～80目
D. 0～100目
【单选题】
[112]润滑油三级过滤的目的是___。
A. 防止润滑油在运输过程中带入杂质
B. 防止润滑油在管理过程中带入杂质
C. 防止润滑油在加注过程中带入杂质
D. 防止润滑油在润滑过程中带入杂质
【单选题】
[113]依靠活塞在泵缸内左右移动，而吸入和压出液体的泵为___。
A. 离心泵
B. 旋转泵
C. 往复泵
D. 旋涡泵
【单选题】
[114]关于冷泵预冷的目的，下列说法正确的是___。
A. 检查泵润滑是否良好
B. 检查泵转向是否正确
C. 检查泵是否有机械故障
D. 防止泵启动后密封变形而泄漏
【单选题】
[115]离心泵启动后，出口阀未打开前，泵运转不得超过___。
A. 1分钟
B. 2分钟
C. 3分钟
D. 4分钟
【单选题】
[116]离心泵启动前出口阀应关闭，其目的是___。
A. 防止液体倒流
B. 防止启动后流体对调节阀的冲击
C. 防止泵启动时因电机电流过高而烧坏电机
D. 保护泵体
【单选题】
[117]往复泵开车过程中，下列操作正确的是___。
A. 启动前开出口阀，启动后开入口阀
B. 启动前开入口阀，启动后开出口阀
C. 启动前入口阀、出口阀均打开
D. 启动前入口阀、出口阀均关闭
