题目内容

5()

A. Because she likes to live near a playground.
Because the new apartment is cheaper.
C. Because she needs a quieter place.
D. Because the present apartment is too small.

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Conversation 2 9()

A. Black.
Brown.
C. White.
D. Gray.

()技术转让()非生产性计划投资

指数平滑预测法中的平滑常数。数值越小,对数列的修匀效果越好。()

A. 对
B. 错

Conversation 1 7()

About every four minutes.
B. About every five minutes.
C. About every six minutes.
D. About every seven minutes.

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