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2008 It used to be so straightforward.

It used to be so straightforward. A team of researchers work...

2023年7月25日考研英语真题435评论

2007 How Can a Parent Help?

How Can a Parent Help? Mothers and fathers can do a lot to e...

2023年5月4日考研英语真题493评论

2006 When prehistoric man arrived in new parts of the world, something strange happened to the large animals: they suddenly became extinct.

When prehistoric man arrived in new parts of the world, some...

2023年4月19日考研英语真题426评论

2006 The homeless make up a growing percentage of America’s population.

The homeless make up a growing percentage of America's popu...

2023年4月17日考研英语真题429评论