题目内容
-I think CO is ________ CFCs, isn't it?
-Yes, you are right.
[ ]
A.similar to
B.the same as
C.different from
D.familiar to
答案:C
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题目内容
-I think CO is ________ CFCs, isn't it?
-Yes, you are right.
A.similar to
B.the same as
C.different from
D.familiar to