交换系统基本性能测试，汇接中继呼叫对本地网内所有汇接方式各抽测（）次以上，要求性能良

石韦散1功效与作用

通信管家业务与（）、随身号薄、同振业务互斥。

M: Christmas is round the corner and I’m looking for a gift for my girlfriend. Any suggestions
W: Well, you have to tell me something about your girlfriend first. Also, what’s your budget
Q: What does the woman want the man to do().

A. Plan his budget carefully.

B. Give her more information.

C. Ask someone else for advice.

D. Buy a gift for his girlfriend.

内禀增长率是种群在最适条件下表现出来的______增长率。

管路系统的特性曲线是随着（）的增加而上升。

A、流量

B、扬程

C、轴功率

D、效率