Just last week, for example, the World Health Organization (WHO) announced the disturbing disclosure that SARS may be pretty deadlier than previously believed（）.

During many sectors are foundering, the $ 21 billion vi...

单项选择题During many sectors are foundering, the $ 21 billion videogame-software industry is booming, adding game developers at a rate of 2,500 a year in the United States alone（）.

I can still vividly remember to pick our steps in the m...

单项选择题I can still vividly remember to pick our steps in the mountain down the deep valley on my 21st birthday（）.

I see four kinds of pressure working on college student...

单项选择题I see four kinds of pressure working on college students today: economic pressure, parental pressure, peer pressure, but self-induced pressure（）.