龟鹿二仙膏之主要功用为
A．益气生血 B．滋阴养血 C．双补气阴 D．温阳益气 E．双补阴阳
参考答案：E
—What do you think of Mr. Li's teaching?
—No one is _____.[ ]
A. good
B. better
C. best
D. the best
下列声母中哪个是擦音（）
A.b
B.q
C.h
D.m
