【判断题】【消耗次数：1】
只要适当地控制接地电阻Re的大小，就能使流过人体的电流小于安全电流，从而保证人身安全
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
化工生产中要注意人身安全，哪些是错误的 ( )。
①
远离容易起火爆炸场所
②
注意生产中的有毒物质
③
防止在生产中触电
④
生产中要密切注意压力容器安全运行，人不能离远
【单选题】
通过人体的电流越大危险性越大，根据人体状态，可将通过的电流分为三个逐级提升的级别：（）。
①
感知电流—摆脱电流—室颤电
②
摆脱电流--感知电流—室颤电流
③
室颤电流—摆脱电流—感知电流
④
感知电流—室颤电流—摆脱电流
随机题目
【单选题】
May I see your tickets and passports, please?
①
No, you can’t
②
Yes, you can
③
here they are
④
No, they are mine
【单选题】
At midnight, he received a telephone call and was asked to meet at once.
①
mystery
②
mysterious
③
mystical
④
mythical
【单选题】
I do not intend to follow that, because we shall have an opportunity to do so on another __________ .
①
A occasion
②
situation
③
condition
④
environment
【单选题】
The price makes ______ impossible for us to build a business relationship.
①
this
②
that
③
it
④
what
【单选题】
Australia has its own identity ,which is very different from that of Britian.
①
busy
②
central
③
capable
④
cultural
【单选题】
Can you come over for dinner with us?
①
I’d like to but I have a meeting tonight
②
It doesn’t matter
③
No, I don’t like
④
Oh, that sounds well
【单选题】
Do you mind if I take a couple of hours off this afternoon?
①
Never mind
②
OK, but what for?
③
Yes, please help yourself
④
Yes, but I don’t care
【单选题】
Would you like to have dinner with us this evening?
①
OK, but I have to go to a meeting now
②
No, I can’t
③
I’d love to, but this evening I have to go to the airport to meet my parents
④
I don’t know