A、The group rinsing(漱口) with carbohydrate drinks. B、The group rinsing with sugar-free water. C、The group swallowed carbohydrate

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问题  

选项 A、The group rinsing(漱口) with carbohydrate drinks.
B、The group rinsing with sugar-free water.
C、The group swallowed carbohydrate drinks.
D、The group swallowed sugar-free water.

答案B

解析 短文中提到,实验分两组,一组使用含糖饮品,一组为白水,结果用含糖饮品漱口的实验者比用白水漱口的实验者更快完成任务,故选B项。
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