地球上某点φ＝40°N，λ=120°E，则它与赤道面的对称点是（）。

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问题单项选择题

A．φ＝60°S，λ＝120°E

B．φ＝40°S，λ＝120°E

C．φ＝40°N，λ＝060°W

D．φ＝40°S，λ＝060°W

答案

参考答案：B

情景交际

情景对话

根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项。选项

中有两个为多余选项。

Tom: What did you think of the lecture?

Mary: 1

Tom: Did you really?

Mary: 2

Tom: Certainly not . 3

Mary: So you think you know more than he does.

Tom: Well, take coal for instance.

Mary: 4

Tom: Coal won't become important again.

Mary: Why not?

Tom: It's too dirty. They won't be able to find people to work down coal mines in the future.

Mary: 5

Tom: Nonsense. The only sort of power they will use in the future is atomic power.

A. What about it?

B. I thought he talked a lot of rubbish.

C. I thought it was very interesting.

D. What is it?

E. Yes, didn't you?

F. They'll invent new kinds of machinery.

G. No, did you?

多项选择题

登高焊接与切割作业时，下列做法错误的是（）。

A、用尼龙胶带做安全带

B、为防触电穿上雨衣

C、作业地点下方不能有易燃物品

D、把电源线绑在身上以防跌落