Have sports training every day, ______yo

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问题选择题

Have sports training every day, ______you won’t be healthy in the future.

A．because

B．or

C．unless

D．since

答案

答案：B

题目分析：句意：每天开展运动训练天，否则你将来将不健康。Because因为；or或者，否则；unless除非；since自从。根据前后分句句意可知该选B。

填空题

华北平原主要的农作物熟制是，其主要的粮食作物是。

单项选择题

A security market with price continuity is most accurately characterized as a market in which:（）

A. assets can be bought or sold quickly with minimal transaction costs.

B. prices change rapidly from one transaction to the next in response to new information.

C. prices do not change much from one transaction to the next in the absence of new information.