1_____education is the instruction that occurs when the instructor and students are separated by distance or time,or both

If a boy or a girl has grown up in a home with sharing tasks and decisions，he or she will probably______.

计算机主机主要由______组成。

计算机的主机由______部件组成。

在水木清华bbs网站bbs.tsinghua.edu.cn中，edu是（）。

1946年在美国研制成功的第一台电子数字计算机的英文缩写名是_____。

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

第一台电子计算机是1946年在美国研制的，该机的英文缩写名是______。

采用虚拟主机方式建立电子商务网站的特点________。