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Health problems are closely connected with bad eating habits and a _______ of exercise.

A.limit                         B.lack                          C.need                         D.demand

B


解析:

lack 意為“缺乏”。根據常識可判斷出健康問題與壞的飲食習慣和缺乏鍛煉有關。limit意為“限制”;need意為“需要”;demand意為“要求,需求(量),需要”。

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