题目内容

本实验中，操作正确的有（）。

A. 实验过程中，不需要更换连线方式；
B. 霍尔片应该处于磁场的中间位置，并且与磁铁无接触；
C. 称量过程中，增益旋钮和调零旋钮可以任意旋转；
D. 实验用的砝码和重物不应太重。

查看答案

搜索结果不匹配？点我反馈

更多问题

Which room is the man going to stay in?

A. Room 513.
B. Room 503.
C. Room 305.

With a platinum membership card, the guest can get ____ percent discount at the restaurants.

A. ten
B. eleven
C. twelve

How many restaurants are there in the hotel?

A. Four.
B. Three.
C. Two.

Which of the following is NOT available in the Health Club?

A swimming pool.
B. A table tennis room.
C. A Japanese spa.