博士研究生英语综合教程答案及参考译文

2 中国人民大学出版社

3 http://wenku.baidu.com/link?url= ... 1RvhWKcTpTZ-ST1T2Ka


[p=155, null, left]2

[p=276, null, left][size=256px]KEY TO THE EXERCISES

[p=243, null, left]Unit One Science

[p=243, null, left]Text 1

[p=243, null, left]Can We Really Understand Matter?

[p=182, null, left]I. Vocabulary

[p=182, null, left][size=169px]1. A

[p=182, null, left][size=169px]2. B

[p=182, null, left][size=169px]3. A

[p=182, null, left][size=169px]4. C

[p=182, null, left][size=169px]5. D

[p=182, null, left][size=169px]6. B

[p=182, null, left][size=169px]7. B

[p=182, null, left][size=169px]8. C

[p=182, null, left]II. Definition

[p=182, null, left][size=169px]1. A priority

[p=182, null, left][size=169px]2. Momentum

[p=182, null, left][size=169px]3. An implication

[p=182, null, left][size=169px]4. Polarization

[p=182, null, left][size=169px]5. the distance that light travels in a year, about 5.88 trillion miles or 9.46 trillion km.

[p=182, null, left][size=169px]6. a contradictory or absurd statement that expresses a possible truth

[p=182, null, left][size=169px]7. a device that speeds up charged elementary particles or ions to high energies