药典规定:马钱子粉中士的宁含量的范围是A.30.0%~37.0%B.21.026~26.0%C.18.0%~20.0%D.1.78%~2.82%

题目

药典规定:马钱子粉中士的宁含量的范围是

A.30.0%~37.0%

B.21.026~26.0%

C.18.0%~20.0%

D.1.78%~2.82%

E.0.78%~0.82%