善治少阴经头痛的药为
A．细辛
B．白芷
C．羌活
D．川芎
参考答案：A
Are these friends Japanese? _____.[ ]
A. Yes, these are
B. No, they aren't
C. Yes, they aren't
D. No, these aren't
膨胀机为什么会制冷？
