All people, whether they be rich or poor, strong or weak, privileged or deprived，are interdependent, and _______ the common task of seeking to achieve mankinds full potential

计算机系统中的硬件系统包括主机和外设。下面关于主机正确的说法是______。

Many boys enjoy _______ football, basketball or baseball

－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

Which do you think is ________, health or wealth？

29．__________ when you are on the bus or bike．

计算机主机主要由______组成。

计算机的主机由______部件组成。

____组成计算机主机。

微型计算机主机由____组成。

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

微型计算机的主机包括______。