根据《城镇燃气设施运行、维护和抢修安全技术规程》CJJ51－2006规定：燃气设施的

32. A series of stimulus policies and supportive measures taken by the government _____ to promote change in the economic environment in this area.

A．is expected

B．are expected

C．is expecting

D．are expecting

约伯：《旧约·约伯记》

含芦丁的生药是（）

A.槐花

B.菊花

C.辛夷

D.芫花

E.洋金花

外部中断如何引起的？

简述药物性牙龈增生临床表现。