酸味药所含的主要成分是
A.挥发油
B.皂苷
C.有机酸和鞣质
D.糖类
E.生物碱
参考答案:C
There are only twelve_____in the hospital.
A.woman doctors
B.women doctors
C.women doctor
D.woman doctor
80386可以预先提取多达( )个字节指令存放队列中。
A.8
B.10
C.14
D.16