题目内容

汞灯点亮预热后,一旦开启不要随意____,否则会降低其寿命。汞灯的____很强,不可直视。

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电流微安表在使用前必须进行____和____。

Tanya ________German very well.

A. cause(s)
B. connect(s)
C. drink(s)
D. live(s)
E. open(s)
F. speak(s)
G. take(s)

I don’t often ________coffee.

A. cause(s)
B. connect(s)
C. drink(s)
D. live(s)
E. open(s)
F. speak(s)
G. take(s)

The swimming pool ________at 7.30 every morning.

A. cause(s)
B. connect(s)
C. drink(s)
D. live(s)
E. open(s)
F. speak(s)
G. take(s)

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