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【单选题】

—I think pop music is pleasant. —_________  I think it is just so-so.

A.
I think so.
B.
I don’t think so.
C.
I agree with you.
D.
Yes, you are right.
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参考解析:
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【单选题】能正确表示逻辑关系“79
A.
( X>79 ) && ( X<90 )
B.
( X>79 )!=( X<90 )
C.
79
D.
(X>79 )||( X<90)