1. In 2009, basic and applied research spending constituted 4.7% and 12.6% of total R&D expenditure, dropping from 2000 levels of 5.2% and 17%, respectivel
考试日期：2008.01.12书信种类 推荐信
The local newspaper is holding a “best neighbor in the area” competition. Write a letter to the newspaper to recommend your neighbor
such as与for example的混用我们知道，在表示举例子的时候，such as 与like是完全等同的，如：Wild flowers such as/like orchids and primroses are becoming rare.但是同学们对于Such as、for example
Writing 81 You lost a valuable object on a bus. Write a letter to describe what it is like, why it is important, and how they can contact you. Some people think t
