题目内容

If your expenses ______your income, you will be in debt.

A. surpass
B. exceed
C. survive
D. pass

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()from a distance, the island looked like a cloud.

A. Viewing
B. To view
C. Viewed
D. Being viewed

The policeman entered the dark room,______

A. gun was in hand B. had gun in hand
B. gun be hand
C. D. gun in hand

调节X线管灯丝电流的目的是

A. 控制产生X线的性质
B. 控制产生X线的数量
C. 阻止反向电动势D.这些都对
D. 有一个以上对,但不都对

下列药物有毒的是

A. 血竭
B. 三棱
C. 干漆
D. 西红花
E. 莪术

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