药学综合知识与技能

单选题Kieselguhr G consists of natural kieselguhr that has been extracted with hydrochloric acid and calcined,and to which adout 15% Of calcium sulphate hemihydrate has been added.上文中,“which”指代(  )。

A.natural kieselguhr
B.calcined kieselguhr
C.hydrochloric acid extracted Kieselguhr
D.Kieselguhr G
E.Calcium sulphate hemidydrate

参考答案:A进入在线模考
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