冬虫夏草的功效是
A.止血化痰
B.止血安胎
C.化痰止咳
D.养肝明目
E.补肾固精
参考答案:A
The () is a collection of modules serving as interface between hardware and software to provide a software platform.
A.computer
B.processor
C.application software
D.operating system
SDH网管安全管理是指为网络的安全提供周密的安排,一切未经授权的操作者都不得进入网络系统。