What message does the author mainly want to convey in Paragraph 2?
A. The importance of one"s life is not related with his reputation or fame.
B. Poets and politicians make the same contribution to society.
C. Statesmen are always ready to do small things for people around them.
D. The beloved colleague at TIME is as respectable as Kennedy.
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电焊机及其它焊割设备与高处焊割作业点的下部地面应保持5m以上距离。并设监护人。()
多功能型团队也叫跨智能团队,由来自同一等级不同领域的员工组成,成员之间交流信息,激发新观点,减角面临的问题。()
Which of the following is closest in meaning to "clogging up" (Para. 4)?
A. corrupting.
B. obstructing.
C. raining.
D. betraying.
严禁将焊接电缆线或是焊割的橡胶管缠绕在身上操作,以防触电或燃爆。()