既固精缩尿，又补益肝肾明目的药物是（）。
A.山茱萸
B.覆盆子
C.金樱子
D.莲子
E.芡实
参考答案：B
一Is the man over there Mr Li?
—No. it ________ be him. Mr Li is much taller. [ ]
A. mustn't
B. may not
C. can't
D. needn't
其他改良种用动物
