未分类题

Henry connected the wire to______.
A．a coil
B．a galvanometer
C．the poles of electromagnet
D．an iron bar

A.
A．a
B.a
C.the
D.an

【参考答案】

B
解析：本题是一道具体细节题。问亨利把电线连接到了什么上面。利用查阅式阅读法，我们可以在第三段中找到相关信息。......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)

<上一题目录下一题>

热门试题

单项选择题

未分类题

The galvanometer indicated______.A．that Henry's assistant had connected the wireB．that Henry had been able to produce a voltageC．zero constantlyD．the iron bar had been placed across the poles of the electromagnet

Henry connected the wire to______.A．a coilB．a galvanometerC．the poles of electromagnetD．an iron bar