North America produces a great deal more wheat______.
A.as South America
B.than does South America
C.like South America does
D.than like South America

A.A.as
B.than
C.like
D.than

【参考答案】

B
解析：句意：北美小麦生产的数量远远超过南美。本题考察比较级的使用，'more'应和'than'搭配，助动词'......

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