下列除哪项外.均是升浮类药一般具有的功效（）
A.升阳发表
B.祛风散寒
C.潜阳熄风
D.涌吐
E.开窍
参考答案：C
输气管线管壁因腐蚀、强度降低或穿孔，会引起爆炸及火灾事故，而且事故发生具有偶然性。
--- Was Tom a member of Greener China?
---Yes, he has ___ Greener China for 5 years.
A．taken in
B．joined
C．been in
D．been to
