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- We should not sacrifice environment to foster economic growth.
- 共用题干 第一篇U. S. Blacks Hard-hit by CancerDeath rates for cancer are falling for all Americans,but bla...
- 共用题干 What Is Cancer?Cancer is actually a group of many related diseases that all have to do with ce...
- We almost ran into a Rolls-Royce that pulled out in front of us without signaling.
- 共用题干 Influenza（流感）Influenza has been with us a long time. According to some Greek writers___1___ me...
- 共用题干 Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habit...
- 共用题干 Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exete...
- 共用题干 Life Expectancy in the Last Hundred YearsA hundred years ago,life expectancy in developed coun...
- 共用题干 The Joy of Living AloneMore and more Americans are living alone .Some live alone because of di...
- 共用题干 The Development of BalletBallet is a dance form that has a long history. The fact that it surv...