A.均數(shù) B.幾何均數(shù) C.中位數(shù) D.百分位數(shù) E.倒數(shù)的均數(shù)
A.防風(fēng) B.黨參 C.牛黃 D.麻黃
A.15% B.25% C.16% D.17%