题目内容

IP地址类别前缀为110时,其地址类别为()类。

A. D
B. C
C. B
D. A

查看答案
更多问题

肝郁气滞缺乳的主要证候,下列哪项是错误的:()

A. 产后乳少,甚至全无
B. 乳房柔软,无胀痛感
C. 胸胁胀满,不思饮食
D. 情志抑郁,或有微热
E. 舌苔薄黄,脉弦细或细数

采掘工作面的空气温度超过()℃时,必须停止作业

A. 28
B. 29
C. 30
D. 31

Which of the following are true regarding bridges and switches?()

A. Bridges are faster than switches because they have fewer ports.
B. A switch is a multiport bridge.
C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D. A bridge will forward a broadcast but a switch will not.
E. Bridges and switches increase the size of a collision domain.

老绿篱更新时将地上部分全部锯掉的方法称为()。

A. 平茬
B. 台刈
C. 疏干
D疏枝

答案查题题库