一贯煎中配伍川楝子的用意是（）
A.柔肝缓急止痛
B.疏肝泄热理气
C.养血柔肝滋阴
D.理气养阴生津
E.疏肝润肺生津
参考答案：B
The library needs _____,but it’ll have to wait until Friday．
A．cleaning
B．to clean
C．being cleaned
D．to being cleaned
空气炮可以（）。
