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【单选题】
评价氯化消毒的简便指标是A.
加氯量
B.
大肠菌数
C.
余氯量
D.
细菌总数
E.
消毒时间
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举一反三
【简答题】根据你所听到的对话，选择正确的答案。 1. What are they doing? A. They are shopping. B. They are a telephone call. C. They are dancing. 2. What are they going to do this weekend? A. They are going fishing. B. They...
【单选题】就老年人和年轻人对母语的态度来说，往往是（）。
A.
老年人和年轻人都很忠诚母语
B.
年轻人比老年人忠诚母语
C.
老年人比年轻人忠诚母语
D.
老年人忠诚母语和年轻人不忠诚母语
【简答题】对于年轻人来说,教育很重要。(count)
【单选题】听力原文：W: I'd like to exchange this shirt. I've learned that the person I bought it for is allergic to wool M: Maybe we can find something in cotton or silk. Please come this way. Q: What does the women...
A.
Visit a different store for a silk or cotton shirt.
B.
Get a discount on the shirt she is going to buy.
C.
Look for a shirt of a more suitable color and size.
D.
Replace the shirt with one of some other material.
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