题目内容

What is Johnson's occupation now（）

A. He is a salesman.
B. He is a newspaperman.
C. He is a manager.
D. He is a secretary.

查看答案

搜索结果不匹配？点我反馈

更多问题

引压导管的根部阀与U形管的连接短管不宜过长，以减少压力指示的迟缓。( )

A. 对
B. 错

热电偶(阻)安装在易受被测介质容易冲击的地方。( )

A. 对
B. 错

Opinions from other scientists might go like this: "Why should they want to get in touch with us They may want to observe us only and ______ (不干涉) the development of our civilization."

苛性碱、盐类的中性溶液对铜有腐蚀作用。( )

A. 对
B. 错