用恰当的词语填空，完成对话。每空一词。

A: Hi, Kate. There will be an exciting   1   on Sunday evening. Would you like to see it.'?

B: Sure.   2   is it about?

A: It's about life on Mars.

B: Is it interesting?

A: Yes. People can visit planets like Mars by   3   

B: Can we live on Mars?

A: Yes. There   4   houses, hospitals, and cities on Mars in the movie.

B: How Exciting! I can't   5   to watch it.

A: Do you think man will live in space one day?

B: I think so. I hope I can go there one day.

如图所示，在直导线下方有一矩形线框，当直导线中通有方向如图示且均匀增大的电流时，线框将 （　　）

A．有顺时针方向的电流

B．有逆时针方向的电流

C．靠近直导线

D．远离直导线