何为渗透率？
参考答案：是指在一定压差下岩石所能通过流体的能力。
After the Tea Party, she _____ yesterday evening.[ ]
A. was tired
B. tired
C. is tired
D. does tired
羌活（）。
A．善治太阳头痛
B．善治厥阴头痛
C．善治少阳头痛
D．善治阳明头痛
E．善治少阴头痛
