具有“冒槽”现象的药材为
A.水蛭
B.麝香
C.蟾酥
D.牛黄
E.斑蟊
参考答案:B
We used to see each other , but I haven’t head from him since last year.
A. especially
B. regularly
C. particularly
D. approximately
下列属于水库特征库容的有( )。
A.静库容
B.动库容
C.防洪库容
D.兴利库容
E.校核库容