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问题 选择题
3米：5厘米化成最简整数比是（　　）
A．3：5B．
6
1
C．60：1D．6
答案

3米=300厘米，

3米：5厘米=300：5=60：1，

故选：C．

选择题

The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes. [ ]

A. is

B. are

C. was

D. were

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选择题
—Do you regret paying ten dollars for that book?
—No，I would gladly have paid ________.
A．as twice manyB．twice as many
C．twice as muchD．as twice much
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