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

太阳能光伏发电系统绝缘电阻的测量包括 __ (____)__的绝缘电阻测量、功率调节器绝缘电阻测量 以及 __(____) __的测量。

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．

Which do you think is _________________important, health or wealth?

Either he or I ______to the airport.

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

电力系统中性点接地方式有：_________、_________和中性点不接地。

支持绝缘子一般安装在____、配电柜金属支架或____的构件上,用以固定母线或电气设备的____,并与地绝缘。

小批量生产企业的产品具有差异化的特点，常常根据顾客的要求进行设计、生产，对企业技术人员技术水平要求较高，适于采用________组织形式。