【单选题】计算机网络系统也与计算机系统一样,由网络硬件系统和网络软件系统两大部分组成。一个局域网除有网络通信系统、网络操作系统、工作站外,还需要有( ),是在局域网中处于核心地位的设备。
【简答题】A.Take a more interesting class. B.Continue her physics class. C.Consult her physics teacher. D.Drop the subject temporarily.
【简答题】A. drew B. allowed C. result D. transformed E. physical F. discovered G. effort H. figure I. respect J. fundamental K. mutual Stephen Hawking: The Extrao...
【简答题】C51中用uint替代unsigned int 的宏定义指令是( )
【简答题】Time travel The concept of time travel—traveling backwards and forwards through time—has always been a popular staple of science fiction film and science fiction television series. Time travel usually...
【单选题】下列有关胰岛素注射方法与部位的说法,错误的是()?
A.
注射部位应选择上臂.大腿.腹壁和臀部等轮换注射。
B.
每针间隔1~2cm,一月内不要重复注射同一部位。
C.
按照先NPH,后RI顺序抽取药物,混匀后注射。