晶体三极管做开关使用时,应工作在放大状态。

题型:判断题

问题:

晶体三极管做开关使用时,应工作在放大状态。

考点:电工特种作业操作证电工复审电工复审题库
题型:判断题

问卷设计有哪些方面的基本要求?

题型:判断题

—How much does the pen _____ you?

—Ten yuan

A.spend

B.pay

C.take

D.cost

题型:判断题

句型转换

1. You can collect information not only from books but also on the Internet.(同义句转换)

You can collect information ________ from books________ on the Internet.

2. You hear that John is going to Paris next month,

 ________ ________ ?(反义疑问句)

3. You don't believe that I can work out the problem,

________ ________ ?(反义疑问句)

4. He is more important than any other basketball player in the world during the 1990s. (同义句转换)

He is________ ________ important basketball player in the world during the 1990s.

5. He got over troubles and became the greatest basketball player in the world.  (同义句转换)

He ________ ________troubles and became the greatestbasketball player in the world.

题型:判断题

成人心肺复苏时肾上腺素的正确用法为:()①首次1mg然后1mg-3mg-5mg,稀释后静脉推注,每5分钟递增;②5mg,稀释后静脉推注,每5分钟重复一次;③1mg-3mg-5mg-7mg,稀释后静脉推注,每5分钟重复一次④1mg,稀释后静脉推注,每5分钟重复一次;

A.①②③

B.①③

C.②④

D.④

E.①②③④

题型:判断题

管道运输的缺点表现为( )。

A.灵活性较差

B.就某一具体管道而言,只限于单项货物的运输

C.可以移往他处重复使用

D.可节省运输成本

E.运输对象单一,不具有通用性

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