急性乙肝患者血清中最早出现的指标是（） A.抗HBeAb B.抗HBsAb C.HB

—The couple's quarrelling and fighting last Friday           each other.  

—I think so. Nancy was         in the arm and she blamed that her arm            the whole week.     [ ]

A. wounded; injured; was hurting    

B. hurt; hurt; was hurting 

C. hurt; wounded; was injuring  

D. injured; hurt; was wounding

肾有两窍是指：（）

A.前后二阴

B.精窍和溺窍

C.两耳

D.后阴与耳

E.前阴与耳

在网银上办理账户挂失交易，有效期（）天

A、5

B、7

C、20

D、长期有效

调制解调器(Modem)的功能是实现______ 。

A．模拟信号与数字信号间的转换

B．数字信号的编码

C．模拟信号的放大

D．数字信号的整形

综合布线系统的组成包括( )、( )、( )、( )、( )、( )6个子系统。