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【单选题】
社会上不同商品之所以能够交换，是因为：（）。A.
它们都有价值
B.
它们都有效用
C.
它们都有交换价值
D.
它们都是劳动产品
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举一反三
【单选题】It was not until near the end of the letter she mentioned the new plan.
A.
that
B.
where
C.
why
D.
when
【单选题】The letter she was looking forward to ________ yesterday.
A.
had come
B.
coming
C.
came
D.
come
【单选题】Paragraph 1 Valerie opened up the letter from the military department. She felt the pit of her stomach drop to the bottom of the earth before she even opened it. She knew it was news about John. As sh...
A.
She was his mail delivery person.
B.
She was his sister.
C.
She was his mother.
D.
She was his wife.
相关题目：
【单选题】The letter she was looking forward to ________ yesterday.
A.
had come
B.
coming
C.
came
D.
come
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