生马钱子的用量A. 0.002 ?0.004g B. 0.03 ?0. 06g C.0.3 ?0. 6g D.0.015 ?0.03g E. 0. 05 ?0.

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问题 生马钱子的用量

选项 A. 0.002 ?0.004g
B. 0.03 ?0. 06g
C.0.3 ?0. 6g
D.0.015 ?0.03g
E. 0. 05 ?0.1

答案C

解析
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