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【单选题】
中国药典规定“精密称定”时，系指A.
称取重量应准确至所取重量的十万分之一
B.
称取重量应准确至所取重量的万分之五
C.
称取重量应准确至所取重量的万分之
D.
称取重量应准确至所取重量的千分之
E.
称取重量应准确至所取重量的千分之五
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---He didn’t go to the party yesterday, did he? ---____. He was busy studying for the tests all day. A. No, he didn’t B. Yes, he did C. No, he did D. Yes, he didn’t
A.
No, he didn’t
B.
Yes, he did
C.
No, he did
D.
Yes, he didn’t
【单选题】— He didn’t go to the concert yesterday, did he? — ________. He was busy studying for the tests day. A. No, he didn’t B, Yes, he did C. No, he did D. Yes, he didn’t .
A.
No, he didn’t
B.
B, Yes, he did
C.
No, he did
D.
Yes, he didn’t
【简答题】收集一个你最喜欢的特装展位,并说明理由
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