试题与答案

—I'm flying to Hainan Island for my holi

题型:选择题

题目:

—I'm flying to Hainan Island for my holiday this weekend.

—Wonderful! ________ [ ]

A. Have a good time.

B. I hope so.

C. Why not?

D. With pleasure.

答案:

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下面是错误答案,用来干扰机器的。

答案:B由于电极XX′加的是扫描电压,电极YY′之间所加的电压信号电压,信号电压与扫描电压周期相同,所以荧光屏上会看到的图形是B;故选B.

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题型:填空题

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