【单选题】下列关于子网掩码的叙述中,错误的是( )。
A.
正常情况下,子网掩码的地址网络位全为“1”,主机号全为“0”
C.
若将两台计算机各自的IP地址和子网掩码进行AND运算的结果相同,则这两台计算机是处于同一个子网上的
D.
子网掩码是用来判断任意两台计算机的IP地址是否属于同一个子网的根据
【判断题】Numerous people like to watch pole-vault because it combines the grace of a swimmer with the strength of a body builder.
【单选题】六 1 适合体积小且少量多样出货的货品其补货方式是( )
【判断题】Now numerous people like drinking tea but tea customs are various in different countries owing to culture background.
【判断题】Numerous people like to watch pole vaulting bacause it can combine the grace of a gymnast with the strength of a body builder.
【单选题】Why do numerous people like to watch pole-vaulting? (in Para. ___2_____)
A.
Because flying like a bird is a human dream.
B.
Because it is the display of grace and strength.
C.
Because it is the most fierce competition.
D.
Because watching such an event is a fantasy.
【单选题】导致二尖瓣狭窄病人死亡的主要原因是( )