【单选题】我国物理学家葛正权什么时候做了铋蒸器分子的速率分布实验?()
【单选题】某校园网地址是202.100.192.0/18,要把该网络分成30个子网,每个子网可分配的主机地址数是 ( )
【单选题】某校园网地址是202.100.192.0/18,要把该网络分成30个子网,每个子网可分配的主机地址数是 ( )
A.
A:32;B:64;C:510;D:512;
B.
A:32;B:64;C:510;D:513;
C.
A:32;B:64;C:510;D:514;
D.
A:32;B:64;C:510;D:515;
【单选题】某校园网地址是202.100.192.0/18,要把该网络分成30个子网,则子网掩码应该是 ( )
A.
A:255.255.200.0;B:255.255.224.0;C:255.255.254.0;D:255.255.255.0;
B.
A:255.255.200.0;B:255.255.224.0;C:255.255.254.0;D:255.255.255.1;
C.
A:255.255.200.0;B:255.255.224.0;C:255.255.254.0;D:255.255.255.2;
D.
A:255.255.200.0;B:255.255.224.0;C:255.255.254.0;D:255.255.255.3;
【简答题】食物中所含有的脂肪,经过人体的消化,分解成 和 ,被人体吸收。
【简答题】我国物理学家葛正权什么时候做了铋蒸器分子的速率分布实验?()
【单选题】茶褐素是红茶的呈味物质,它的含量增多对品质不利,主要是使()。
【简答题】句型转换 1. You can't make a noise in the classroom(改为祈使句) a noise in the classroom. 2. Run in the classroom(改为否定祈使句) in the classroom. 3. Don't fight in school.(改为同义句) in school. 4. He has to wear a scho...
【单选题】What's in the classroom? [ ]
A.
Two lights, many desks and chairs.
B.
Let's clean the classroom.