【单选题】Some of my students study very hard. ______ just don't care.
【单选题】互联网给人类带来极大便利。但是,1988年美国国防部的计算机主控中心遭黑客入侵,6千台计算机无法正常运行。2002年,美军组建了世界上第一支由电脑专家和黑客组成的网络部队。2008年,俄罗斯在对格鲁吉亚采取军事行动之前,先攻击格鲁吉亚的互联网,使其政府、交通、通讯、媒体、金融服务业陷入瘫痪。由此可见__________。 以下哪一项陈述可以最合逻辑地完成上文的论述?
A.
网络已经成为世界各国赖以正常运转的“神经系统”、
B.
在未来战争中,网络战可能成为一种新的战争形式
D.
及时对杀毒软件进行升级,可以最大限度地防范来自网络的病毒
【简答题】My students often tell me that they don’t have “enough time” to do all their schoolwork. My reply is often a brief “You have as much time as the president.” I usually carry on a bit about there being ...
【单选题】下列选项中( )不是问号(?)通配符的功能。
A.
在不知道文件名某一个字符时,把问号放在该字符的位置
【单选题】下列选项中()不是问号通配符的功能。
C.
在不知道文件名某一个字符时,把问号放在该字符的位置
【简答题】阅读理解 My students often tell me that they don't have 'enough time' to do all their schoolwork. My reply is often a brief 'You have as much time as the president.' I usually carry on a bit about there b...
【简答题】My students often tell me that they don’t have “enough time” to do all their schoolwork. My reply is often a brief “You have as much time as the president.”I usually carry on a bit about there being t...
【单选题】以下关于星号(*)通配符说法不正确的是( )。
A.
在搜索文件或文件夹的时候,如果忘记一个或几个字符,可以把星号通配符放在该字符的位置,可把要找的文件或文件夹搜索出来
B.
如果知道文件名的开始的几个字符,而忘记了其余部分,可以将星号通配符放在开始的几个字符后边,代替遗忘部分
【判断题】病毒结构简单,只有蛋白质外壳和核酸组成的核心。