冰片是（）
A.开窍药
B.平肝息风药
C.利水渗湿药
D.重镇安神药
参考答案：A
-----Haven’t you heard the news? -----What news? ----- Some of the workers are _______ while others are ______.
A．on the march, on strike
B．on march, on strike
C．on the march, on the strike
D．on the strike, on march
热井水位上升到（）米时，开启优选泵。
A.2.4
B.4.5
C.5.15
D.5.6
