[单项选择]在惰性气体系统中，P/V阀的主要功能（）。
A. 除尘、除硫、冷却
B. 防止货油舱内的油气倒流回机舱
C. 防止货油舱

[填空题]防火墙主要可以分为______、代理服务器和应用级网关等类型。

[填空题]时钟系统网管电脑与集中告警系统的接口是________。

[单选题]一般情况下,安全帽能抗( )Kg铁锤自1m高度落下的冲击
A.2
B.3
C.4

[判断题]维持老顾客的成本大大高于吸引新顾客的成本____
A.正确
B.错误

[单选题]（  ）常见的有中继器、集线器、网线、HuB、RJ45标准等。
A.物理层
B.数据链路层
C.网络层
D.应用层

[判断题]《山东省农村商业银行贷款借新还旧管理暂行办法》中规定，办理借新还旧时不得解除原担保责任。（ ）
A.正确
B.错误

[单选题] 重症肌无力最常与哪一种疾病同时存在
A.甲状腺肿瘤;
B.甲亢;
C.胸腺瘤;
D.系统性红斑狼疮;
E.多发性神经炎;

[判断题]带电的多余电缆可以盘放起来。
A.正确
B.错误

[单项选择]

共价键、离子键和范德瓦尔斯力都是微粒之间的不同作用力，下列含有上述两种结合力的是（）
①Na₂O₂
②SiO₂
③石墨
④金刚石
⑤NaCl
⑥白磷

A. ①②④
B. ①③⑥
C. ②④⑥
D. ③④⑤

[单选题] 轨道交通物品安检执行( )的要求,并有效兼顾远营快捷。
A.辅助设备普检,安检机精检
B.安检门普检,人工手检精检
C.安检机普检,辅助设备精检
D.人工手检普检,安全门精检

[不定项选择题]共用题干 EL Nino

While some forecasting methods had limited success predicting the 1997 EL Nino（厄尔尼诺现象，指赤
道东太平洋南美沿岸海水温度剧烈上升的现象。) a few months in advance , the Columbia University
researchers say their method can predict large EL Nino events up to two years in advance.That would be
good news for governments,farmers and others seeking to plan for the droughts and heavy rainfall that EL
Nino can produce in various parts of the world.
Using a computer,the researchers matched sea-surface temperatures to later EL Nino occurrences（发
生）between 1980 and 2000 and were then able to anticipate EL Nino events dating back to 1857,using prior
sea-surface temperatures.The results were reported in the latest issue of the journal Nature.
The researchers say their method is not perfect , but Bryan C. Weare , a meteorologist（气象学家）at the
University of California,Davis,who was not involved in the work,said it"suggests EL Nino is indeed
predictable".
"This will probably convince others to search around more for even better methods,"said Weare.He
added that the new method " makes it possible to predict EL Nino at long lead（提前的）times ". Other
models also use sea-surface temperatures,but they have not looked as far back because they need other data,
which is only available for recent decades,Weare said.
The ability to predict the warming and cooling of the Pacific is of immense importance.The 1997 EL
Nino , for example , caused an estimated $20 billion in damage worldwide , offset（抵消）by beneficial effects
in other areas,said David Anderson,of the European Centre for Medium-Range Weather Forecasts in
Reading , England. The 1877 EL Nino , meanwhile , coincided（同时发生）with a failure of the Indian monsoon
and a famine that killed perhaps 40 million in India and China,prompting the development of seasonal
forecasting,Anderson said.
When EL Nino hit in 1991 and 1997,200 million people were affected by flooding in China alone,
according to a 2002 United Nations report.
While predicting smaller EL Nino events remains tricky（复杂的）, the ability to predict larger ones
should be increased to at least a year if the new method is confirmed.
EL Nino tends to develop between April and June and reaches its peak between December and
February.The warming tends to last between 9 and 1 2 months and occurs every two to seven years.
The new forecasting method does not predict any major EL Nino events in the next two years,although a
weak warming toward the end of this year is possible. The method used by the Columbia University researchers can predict EL Nino a few months in advance.
A.Right
B.Wrong
C.Not mentioned

[单项选择]由于吸毒是一个非常复杂的社会现象，是由药物、人和环境三方面相互作用的结果。因此对药物滥用目前提倡“三级预防”，采用“三减策略”。对高危人群开展干预活动，有针对性地选择有效干预方法，提高抵挡毒品诱惑力的预防是（）
A. 一级预防
B. 二级预防
C. 三级预防
D. 原级预防
E. 初级预防

[单选题]测量接地电阻时,电位探针应接在距接地端()m的地方。
A.20
B.5
C.40

[单选题]伤员脱离电源后，判断伤员有无意识应在（ ）s以内完成。
A.5
B.10
C.30
D.60

[判断题]阴雨天车辆要远离高压线，并保持足够安全距离。
A.正确
B.错误

[单选题]在电能量采集装置上工作。电能量采集装置上的工作结束前，应验证电能表数据、电能量采集装置数据、电能量计量系统主站数据三者的（ ）。
A.完整性
B.准确性
C.一致性
D.有效性

[单项选择]直接耦合放大电路存在零点漂移的原因主要是（）。
A. 电阻阻值有误差
B. 晶体管参数的分散性
C. 晶体管参数受温度影响
D. 受输入信号变化的影响

[单选题] 单选 正弦交流电在每一瞬时的数值称为（ ），用小写字母表示。
A.瞬时值
B.有效值
C.最大值
D.频率

[单项选择]以下叙述中正确的是______。
A. C语言比其他语言高级
B. C语言可以不用编译就能被计算机识别执行
C. C语言以接近英语国家的自然语言和数学语言作为语言的表达形式
D. C语言出现的最晚，具有其他语言的一切优点

[单选题]保证由其负责的停、送电和许可工作的命令正确是（ ）的安全责任。
A.工作票签发人
B.工作许可人
C.工作负责人（监护人）
D.专责监护人

[单项选择]在我国现代法律理论中，狭义“法律”的含义是指( )。
A. 由有立法权的国家机关制定，包括宪法、行政法规在内的一切规范性法律文件
B. 由全国人大及其常委会和国务院制定的规范性法律文件
C. 由全国人大及其常委会制定的基本法律以及基本法律以外的法律
D. 由全国人大及其常委会、地方各级人大及其常委会制定的规范性法律文件

[单选题]各电力企业和（）应当自觉接受派出能源监管机构及地方政府有关部门的安全监督管理。
A.建设管理单位
B.监理单位
C.施工单位
D.电力项目参建单位
E./
F./

[简答题]一般用手动式基节仪或万能测齿仪测量( )。

[单选题]决定商品价值量的社会必要劳动时间　（　　）　
A. 以抽象劳动为尺度
B. 以私人劳动为尺度
C. 以剩余劳动为尺度
D. 以简单劳动为尺度

[单选题]38.对于要求制动准确、平稳的场合，应采用（）。
A.A.反接制动
B.B.能耗制动
C.C.电容制动
D.D.再生发电制动

[多选题]电子商务第三方平台明知平台内电子商务经营者侵犯知识产权的,应当依法采取( )等必要措施。
A. 删除
B. 屏蔽
C. 断开链接
D. 终止交易和服务

[单项选择]±5V、±12V电压不正常，“Power Good”信号失效等故障为计算机主机（）故障。
A. 系统
B. 电源
C. 总线
D. 能源存储

[单项选择]我国现行饮用水卫生标准（2006）规定，总大肠菌群应为（）。
A. <10个／L
B. <3个／L
C. <10个／100ml
D. <3个／100ml
E. 不得检出／100ml

[单选题]农村综合变以下的普通工业用户暂不执行分时电价。
A.正确
B.错误

[多项选择]气柜施工完毕后，对钟罩、中节应进行的试验为( )。
A. 注水实验
B. 严密性试验
C. 快速升降实验
D. 气密试验

[判断题]实际扬程超过水泵总扬程,启动后是可以出水的。( )
A.正确
B.错误

[判断题]信贷管理系统中，抵押、质押混合担保方式的，担保合同需按抵押、质押分别签订担保合同。
A.正确
B.错误

[单项选择]皮碗清管器可以通过局部变形小于（）的管线。
A. 4%
B. 7%
C. 6%
D. 5%

[单选题]设备故障处理后的放行列车条件由（　）确定。
A.值班段领导
B.生产指挥中心调度员
C.车间主任
D.作业负责人

[单选题]总书记指出，历史充分证明，江山就是人民，人民就是江山， （ ）关系党的生死存亡。
A.党群关系
B.人心向背
C.经济发展水平
D.实事求是

[单项选择]基础生态学的不同等级单元由低到高排列顺序为( )。
A. 个体、群落、种群、生态系统
B. 种群、个体、群落，生态系统
C. 个体、生态系统、群落、种群
D. 个体、种群、群落、生态系统

[单项选择]Some years ago, thumping, jumping noises routinely issued from the apartment upstairs as if baby elephants were competing in the 50-yard dash. 1 went up one day to politely inquire. "No，nobody’s making noise here, "the husband and wife both insisted. " It must be coming from elsewhere in the building. " Two children about five years old, each holding soccer balls, stood right beside their parents. " Could the thumping be your kids running around, perhaps playing soccer " I asked. "Oh no, we never let the kids play in the house. "
For months, the pattern continued: the thumping and jumping above, our delicate check-in, the denial. It got so that every time I saw the couple, I glared without a word of greeting.When they moved out of the building, the thumping stopped.
I suppose I could have forgiven my neighbors and spared them the glare. After all, forgiveness is in a trend advocated by best-selling books, foundations and research institutes. The notion has gone well beyond sp
A. has great difficulty forgiving people
B. regrets failing to practice forgiveness
C. wants to learn how to forgive people
D. opposes "forgiveness without principle/

[单项选择]证券发行采取市值配售发行方式的，客户信用证券账户的明细数据纳入其对应的( )计算。
A. 发行价格
B. 净值
C. 市值
D. 面值