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- This was an unexceptionally brutal attack.
- 共用题干 A Doctor in the HouseBrushing your teeth twice a day should keep the dentist away. But if a gr...
- 共用题干 Unlocking the Human Genome（基因组）1 A project to unlock secrets一what scientist could resist that ...
- 共用题干 The Joy of Living AloneMore and more Americans are living alone.Some live alone because of div...
- He inspired many young people to take up the sport.
- 共用题干 Caribbean IslandsWhat would you see if you took a cruise to the Caribbean Islands?Palm trees a...
- “What do you mean by that?”Paul asked sharply.
- 共用题干 More Than 8 Hours Sleep Too Much of a Good Thing1 Although the dangers of too little sleep are...
- 共用题干 Black HolesMost scientists agree that black holes exist but are nearly impossible to locate.A ...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...