【单选题】对于频繁起动的异步电动机,应当选用的控制电器是( )
【单选题】MSTP解决了很多RSTP和STP单个生成树的缺陷,关于MSTP的说明,正确的是:
A.
每个MSTP Instance都使用单独的STP算法,计算单独的生成树。
B.
每一个MSTP Instance都有一个标识(MSTPID),MSTPID是一字节的整数。
C.
默认所以VLAN映射到MST Instance 1。
D.
MSTP允许讲一个或多个VLAN映射到一个多生成树实例(MST Instance)上,MSTP为每个MST Instance单独计算根交换机,单独设置根端口状态。
【单选题】In the eyes of Turklea, which of the following is missing in the growth of young adults these days?
B.
Separation from parents.
C.
Communication with parents.
D.
Social activities with peers.
【单选题】Cinder模块是云平台的块存储服务提供模块,Cinder组件借助于Linux系统的()实现将多个物理磁盘进行统一管理。
【单选题】Which of the following is true about the attempts to save these birds from extinction?
A.
There is disagreement about the methods employed.
B.
The majority of condors released into the wild became ill.
C.
Attempts to breed condors in captivity have failed.
D.
Condors reintroduced into the wild are unable to hunt.
【单选题】强碱滴定弱酸(p K a = 5.00),宜选用的指示剂为
【单选题】___ is the most useful invention?
A.
Do you think which of these
B.
Which of these you know
C.
Which of these do you know
D.
You know which of these