下列关于操作系统的主要功能的描述中，不正确的是( )。A．处理器管理 B．作业管

—Is Rick often late for work?

—Never. He always _________ on time.

A．comes home

B．goes to work

C．does homework

D．takes a walk

-Where were you both at this time last night?  

-Tom was writing an e-mail __________ I was watching TV at home.  [ ]

A. as soon as

B. after

C. until

D. while

意识障碍伴瞳孔散大的是（）

A.吗啡中毒

B.酒精中毒

C.海洛因中毒

D.有机磷农药中毒

E.巴比妥类中毒

宫颈非典型增生分为______、______、______三度。

酶扩大免疫测定技术是最早取得实际应用的何种酶免疫测定方法( )

A．均相酶免疫测定
B．异相酶免疫测定
C．固相酶免疫测定
D．液相酶免疫测定
E．固相-液相酶免疫测定