题目内容

[音频]

A. OK, thank you.
B. It doesn't matter.
C. It's over there.
D. No way.

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[音频]

A. Why not?
B. Here you are.
C. Let's go.
D. Never mind.

[音频]

A. You are so nice.
B. I'd love to
C. It's great.
D. Nice to meet you.

[音频]

A. No problem.
B. Is it true?
C. Not at all.
D. Is it right?

当阳极电压一定时，光电流与光电阴极接收到的光通量之间的关系成为（）特性。

A. 光电
B. 光谱
C. 伏安
D. 温度