题目内容
Engines are to machines ________ hearts are to animals.
[ ]
A.
as
B.
that
C.
what
D.
which
答案:C
解析:
解析:
|
句意为“发动机之于机器就如同心脏之于动物”。A is to B what C is to D为固定句型。 |
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