以下关于计算机病毒与蠕虫的特点比较中，说法正确的是()
向前纠错差错控制方法的特点是()。
局部总线是解决I/O瓶颈的一项技术。下列说法哪个是正确的()
People in some areas don’t have to pay for their ______.
When I got out of the car and walked about among them, ____one old man who shook his head disapprovingly, they all began to cheer .
Where are the colleagues going for lunch?
It ____ also create more focused teams and less wasted time.
If he ____ on tourists for his business,he would have to close his shop.
I believe that remark ____ from what you said yesterday.
Some concepts may be difficult to grasp chiefly because they may be unfamiliar or _____ideas, opinions which we already hold.
I am sorry I have no time at present to ____more detail or give you an account of other cities of interest.
This signs in America represents:
Roy: ______ It 's getting late.
Ellen: Must you go soon?