麦门冬汤中麦冬剂量是半夏的（）
A.3倍
B.4倍
C.5倍
D.6倍
E.7倍
参考答案：E
Many sharks () fish and other sea animals.
A．live with
B．depend in
C．feed on
D．eat at
油膜振荡的产生原因？
