A： what which why how

题目分类：习题答案
题目类型：A
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what which why how

参考答案：【答案仅供学习，请勿对照自行用药等】

安全成本是实现安全消耗的人力和物力的和。

安全成本是实现安全消耗的人力和物力的和。

分类：习题答案题型：A

Text 4 It was 3:45 in the morning when the vote was finally taken. After six mon

Text 4It was 3:45 in the morning when the vote was finally taken. After six months of arguing and fin

分类：习题答案题型：A

3E原则即工程技术对策、教育对策和法制对策。

3E原则即工程技术对策、教育对策和法制对策。此题为判断题(对，错)。

分类：习题答案题型：A

This diploma _____ that you have completed high school. proves certifies sec

This diploma _____ that you have completed high school.provescertifiessecuresapproves

分类：习题答案题型：A

We have the system of exploitation of man by man. cancelled abolished refuse

We have the system of exploitation of man by man.cancelledabolishedrefusedrejected

分类：习题答案题型：A