题目内容

糖类供给标准是()。

A. 占总能量的65％～70％
B. 占总能量的60％～65％
C. 占总能量的40％～45％
D. 占总能量的75％～80％
E. 占总能量的50％～55％

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It is difficult for him to make such decision.

A. happy
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You should give up smoking because it is bad for you.

A. try
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D. 占总能量的8％
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