当起重吊装现场有3kV高压输电线通过起重机械在垂直方向应保持()m的安全距离。A、1

题型:单项选择题

问题:

当起重吊装现场有3kV高压输电线通过起重机械在垂直方向应保持()m的安全距离。

A、1.5

B、3.0

C、4.0

D、0.5

考点:安全员安全员综合练习安全员综合练习题库
题型:单项选择题

阅读理解。

     Mary had some trouble in her head, so she went to see the doctor.  He was a new doctor, and did

not know her. So he first asked her some questions. One of the questions was, "What is your age?"

     "Well..." Mary answered, "I don't quite remember, doctor, but I will try to think." She thought for a

while and then said, "Yes, I remember now, doctor. When I married, I was twenty-two years old, and

my  husband  was  thirty  then. Now he  is sixty, I know, and  that is  twice thirty. And so I am twice

twenty-two. That is forty-four, isn't it?"

1. Mary went to see the doctor because ______.

A. she had a headache        

B. she had a fever

C. she had caught a cold      

D. she couldn't think well

2. At first the doctor ______.

A. asked her some questions    

B. examined her carefully

C. gave her some medicine    

D. asked her to have a rest

3. Mary got married when______.

A. she was twenty years old  

B. she was thirty years old

C. she was twenty-two years old

D. she was forty-four years old

4. Mary ______.

A. answered the doctor's questioned at once

B. answered the question after thinking for a while

C. just kept silent      

D. refused to tell her age

5. Mary should be ______.

A. forty-four  

B. forty-five  

C. fifty    

D. fifty-two

题型:单项选择题

在我国,除息日的股票价格与股权登记日的股票价格相比()。

A.较低

B.较高

C.一样

D.不一定

题型:单项选择题

下列CT检查前的准备工作,正确的是()

A.被检者可以直接进入CT扫描室

B.婴幼儿被检者应事先给予镇静剂

C.胸、腹部CT检查无须呼吸训练

D.胸部被检者应事先口服1%~2%碘水对比剂

E.CT扫描采用高仟伏,金属饰物的影响不大

题型:单项选择题

收单商户信息集中化处理业务采用()的处理模式。

A.两校一录

B.两录一校

C.三录一校

题型:单项选择题

合作性冲突的焦点是()。

A、以问题为中心

B、以个人为中心

C、以输赢为中心

D、以成败为中心

更多题库