题目

Sugar______naturally in fruit, so eating fruit can add to the contents of sugar inside our body.    A. happens    B. occurs    C. appears    D. forms 答案：B 解析:  occur此处意思为“存在于；出现在”，句意：水果天然含糖分,因此多吃水果能够增加体内糖分的含量。

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