[单项选择]It’s more difficult to solve a problem than（）
A. a question is found
B. finding a question
C. that of finding a question
D. to find a question

[单项选择]To solve such a difficult problem is really ______ my grasp.
A. beyond
B. out of
C. beneath
D. away from

[填空题]The problem is too difficult for me (solve) （）.

[单项选择]The most difficult problem we faced with is to reduce China’s population to less than 1 billion within 20 years.（）
A. 现在摆在我们面前最艰巨的问题就是在20年里把中国人口降低到10亿。
B. 我们所面临的最艰难的问题是在20年里使中国的人口减少10亿。
C. 我们所面临的最艰难的问题是在20年里把中国人口降低到10亿以下。
D. 最艰巨的问题摆在我们面前就是在20年里把中国人口减少10亿。

[单项选择]First of all, this difficult problem has to be tackled, thus （　） us to proceed to the others.
A. to enable
B. enabled
C. enabling
D. having enabled

[单项选择]A) More than 70 million. C) More than 2000 million.
B) More than 1000 million. D) More than 6000 million.

[单项选择]Beginning in October, more than 13000 McDonald’s restaurants in America will use a new variety of cooking oil. McDonald’s aims to make its French fries and other fried foods healthier.
The change will not affect the taste or the number of calories in the food. But by changing the cooking oil, McDonald’s says, it hopes to cut by nearly half the amount of trans fatty acids (转换脂肪酸) in French fries and reduce the amount of saturated fats (饱和脂肪) by 16 percent. Scientists believe that trans fatty acids and saturated fats raise cholesterol (胆固醇) levels and increase the risk of heart disease.
McDonald’s new step is important because McDonald’s is an industry leader and other fast-food chains and food processors may follow the lead.
For McDonald’s, the action comes at a time when Americans are becoming more and more concerned about obesity, which is also an increasing pressure on food companies to offer healthy food to consumers.
After three ye
A. lower the costs of the products
B. make its food taste better than ever before
C. cure the heart disease
D. do good to the health of consumers

[填空题]For more than two centuries, America’s colleges and universities have been the backbone of the country’s progress. They have educated the technical, (1) work force, and provided generation after generation of national leaders. Today educators from around the country are apt to find many reasons for the (2) , but four historic acts stand out as watersheds.
First, (3) : In 1862 Congress enacted the Land-Grant College Act, which essentially extended the opportunity of higher education to all Americans, including (4) . Each state was permitted to sell large tracts of federal land and use the proceeds to endow at least (5) .
Second, competition breeds success: Over the years, the (6) of the America’s colleges and universities have promoted (7) . Competitive pressure first arose during the Civil War, when President Lincoln created (8) to advise Congress on "any subject of science an