药材金银花的抗菌成分是（）
A.木犀草素
B.芦丁
C.肌醇
D.绿原酸
E.山奈素
参考答案：D
Li Lei sings ______ in his class. [ ]
A. more beautiful
B. the most beautiful
C. more beautifully
D. most beautifully
现代企业制度
