如图所示，闭合开关后，要使L1和L2都发光，甲是__________表；乙是 _

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问题填空题

如图所示，闭合开关后，要使L₁和L₂都发光，甲是__________表；乙是 ______表。

答案

电流；电压

单项选择题

—I thought you wouldn't mind.
— Well, as a matter of fact, I don't, but you ______ me first.

A. should ask

B. should have asked
C. must ask

D. must have asked

填空题

HTTP协议的中文名称是（）。