既能化痰，又能降肺胃气逆的药物是（）
A.前胡
B.苏子
C.白芥子
D.白前
E.旋覆花
参考答案：E
The plan of cleaning up the city parks has been ______ till next Saturday.[ ]
A. put on
B. put up
C. put off
D. put down
构成颅中窝的骨有 ( )
A．额骨
B．蝶骨
C．颞骨
D．筛骨
E．枕骨
