《中国药典》规定称取2.0g，是指称取重量为A．1.95～2.05g B．1.99～

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问题单项选择题

《中国药典》规定称取2.0g，是指称取重量为

A．1.95～2.05g

B．1.99～2.01g

C．1.5～2.5g

D．1.98～2，02g

E．1.5～2.5g

答案

参考答案：A

解答题

填空题

用所给词的适当形式填空。

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—We______ (live) in Japan.

4. He spent one hour ______ (read) the story book.

5. They______ (tour) the USA when they studied at school.

6. He can play the piano, the ______ (violinist) and some other musical instruments.