单项选择题

Questions 19-22

A. It has color. B. It has a moving image.
C. It costs less money. D. It is not on the market.
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单项选择题
A. To make preparations for a new publication.B. To learn how couples spend their weekend.C. To know how housework is shared.D. To investigate what people do at weekend.
A. To make preparations for a new publication.
B. To learn how couples spend their weekend.
C. To know how housework is shared.
D. To investigate what people do at weekend.
填空题
recognize and solve problems
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