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单选题
Only half as many students study computer science than they did just a decade ago.
A

than they did

B

than was true

C

as did

D

when compared to

E

than


参考答案

参考解析
解析:
短语“as many...than“的使用不符合语言习惯。正确的用法为“as many as”。只有C项的短语使用正确。
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