A．在职人员在本单位所作的发明创造 B．在本职工作中所作出的发明创造 C．履行本单

The little boy ______ his seat to the old lady on the crowded bus.[ ]

A. offered

B. brought

C. lent

D. took

Work hard at your lessons, and you’ll ____ your classmates.

A．catch

B．catch up

C．keep with

D．keep up with

关于膀胱炎的X线检查，错误的是（）

A.急性期膀胱边缘较模糊

B.慢性期膀胱体积可以不变

C.慢性期膀胱边缘可呈锯齿状

D.膀胱输尿管反流

E.膀胱憩室

隔盐灸的确切作用是

A．解表、散寒、温中

B．回阳、救逆、固脱

C．清热、杀虫、解毒

D．防病、保健、益寿

E．温肾、壮阳、通脉

支气管哮喘