Theatomicweightofoxygenisthano

更新 2022-09-03
科目英语
题型单选题
难度中等
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挑错有奖

The atomic weight of oxygen is_____than ______of the hydrogen.

A．15 times heavier; that

B．15 times heavier: those

C．16 times as heavier; that

D．16 times as heavy; those

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