题目内容
（请给出正确答案）
Why did Sturgeon's electromagnet could support nine pounds of iron？
A. Because the iron rod was bent into the shape of a “horseshoe”.
B. Because the rod was coated with varnish.
C. Because a layer of copper wire was wrapped around the rod.
D. Because the rod was made magnetic by the passing current.
如果结果不匹配，请 联系老师 获取答案
更多“Why did Sturgeon's electromagn…”相关的问题
Why did farmers reject Newbold's plow？ ()
A．Their horses were frightened by it.
B．They preferred lighter tools.
C．It was too expensive.
D．They thought it would ruin the land.
Why did George laugh at Anne's question？
A．Because the students always wore evening dress.
B．Because it wasn't evening.
C．Because all the students wore evening dress in June.
D．Because he knew she had never seen formal dress worn in the morning before.
Why did the flames spread quickly？
A．The oven became very hot.
B．The houses were close together.
C．The baker did nothing to stop it.
D．The baker's house was burning quickly.
A.Not exactly
B.I don’t know why
C.You’re great
D.That’s all right
A.Good Luck!
B.You did？
C.It’s no surprise
D.Never mind
Why might Irving' s literary ability have been surprising to the English？
A．They feared competition from American writers.
B．They did not expect the United States to produce good writers.
C．They disapproved of the language American writers used.
D．They thought of the United States as a purely commercial power.
A. Isn't she your girlfriend
B. They said she had left for London
C. What's the problem
D. Her office left you a message
E. Why not invite me, then
F. They said they had phoned Linda
G. The manager of their office had suddenly fallen iii
H. Sorry, I lost my way
A: Are you phoning Linda？
B: Yes. But how did you know？
A: (56)
B: What did they say？
A: (57)
B: What happened？
A: (58) . She had to go and take his place for three days.
B: That's too bad.
A: (59) ？
B: You see, I had arranged for us to have a dinner with a friend tonight.
A: (60) ？
B: Sure. Why not？
Section A
Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and the questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices A , B, C, and D.
听力原文：M: Did you buy the bed we saw last week？
W: Of course．Though it's not so beautiful，it's very cheap.
Q: Why did the woman buy the bed？
(1)
A．It is beautiful.
B．It is cheap.
C．The woman likes it very much.
D．It is of high quality.
