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她很不善于见什么人说什么话. ( to have no knack for).
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高速公路和一级公路路堤填料最小强度和最大粒径要求：下路床CBR≥5%，填料最大粒径≤10cm。（）
成年人学习外语的困难之一是母语的干扰. (to interfere with).
Ideas about education are changing in the United States. Education today is not just a high school diploma or a college degree. Many adults are not interested in going to college. They are interested in other kinds of learning. For them, learning does not end with a diploma． Continuing education gives these adults the opportunity to increase their knowledge about their own field or to learn about a new field．It also gives them a chance to improve their old skills or to learn new ones. Scientists, mechanics and barbers can take classes to improve their work skills. If they know more or learn more, they can get a better job or earn more money. Continuing education classes give more adults the chances to learn new skills. There is usually a large variety of classes to choose from: typing, foreign cooking, photography, auto repair, furniture repair, or swimming. These are only some of the classes available. Some adults take classes for fun or because the class will be useful for them. Other adults take continuing education classes to improve their own lives because they want to feel better about themselves. Almost any community college or public school system has a continuing education program. There are classes in schools, community buildings or churches. Most classes are in the evening, so working people can attend．The classes are usually small, and they are inexpensive. Which of the following statement is true
Man cannot go on (1) his numbers at the present rate, In the (2) 30 years man will face a period of crisis. (3) experts believe that there will be a widespread food (4) . Other experts think this is (5) pessimistic, and that man can prevent things (6) worse than they are now. But (7) that two-thirds of the people in the world are undernourished or starving now.One thing that man can do is to limit (8) of babies born. The need (9) this is obvious, but it is (10) to achieve. People have to (11) _ to limit their families. In the countries of the population (12) , many people like big families. The parents think that this (13) a bigger income for the family and ensures there will be someone in the family who will look (14) them in old age.Several governments have (15) birth control policies in recent years. (16) them are Japan, China, India and Egypt. In some (17) the results have not been (18) . Japan has been an exception. The Japanese adopted a birth control policy in 1948. People (19) to limit their families. The birth rate fell from 34. 3 per thousand per year to about 17. 0 per year (20) . 9（）
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