题目内容

What will Monica and Helen do on Tuesday evening?

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When will Monica go to the gym?

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牛奶掺水试验用什么方法检测？

A. 密度法
B. 葡萄糖与医用尿糖试纸显色
C. 碘遇淀粉变为蓝色
D. 利用溴百里香酚蓝指示剂