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据人口普查报告说，扣除通货膨胀因素后，1983年中等家庭收入增加了1.6%。通常情况下，随着家庭收入上升，贫困人数就会减少，然而1983年全国贫困率是18年来的最高水平。人口普查司提供了两种可能的原因：影响深、持续时间长的1981—1982年经济衰退的持续影响，由妇女赡养的家庭人口数量和不与亲戚们同住的成年人数量的增多，这两种人都比整体人口更加贫困。 这个报告能得出以下哪个结论
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请根据下面的短文回答第66-70题 American doctors say that mothers who smoke before their babies are born may slow the growth of their babies’ lungs. They say reduced lung growth could cause the babies to have breathing problems and lung illness later in life. Doctors in Boston, Massachusetts studied 1,000 children. The mothers of some of the children smoked, the other mothers did not. Doctors found that the lungs of the children whose mother smoked were 8% less developed than the children whose mothers did not smoke, and that the children whose mothers smoked developed 20% more cold and breathing illness than other children later in life. Another recent study found that children had a greater chance of developing lung cancer if their mothers smoked. The study also showed that the danger of lung cancer increased only for sons and not for daughters, and that the father’s smoking did not affect a child’s chance of developing lung cancer. Doctors in Boston studied 1,000 children to______.
计算机有望代替老师的想法：学生们对所教的科目的理解在于他们知道事实和规则，老师的工作就是使事实和规则明确化，并通过做练习或者教授的方法把它们传授给学生，如果大脑确实是那样运行的话，教师可以把事实和规则输进计算机，计算机就可以作为教练和教官代替教师。但是既然理解并不仅在于知道事实和规则，而且在于对事实和规则所内含的整体概念的掌握。所以计算机有望最终代替老师的想法从根本上说方向是错误的。 下面哪一点，如果正确的话，最能削弱作者关于计算机不能最终代替老师的结论
阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选出能填入相应空白处的最佳选项。One day a little boy comes into a shop and (41) the shop assistant,“I want (42) twelve exercise books of 6 cents each and pencils of 10 cents each. (43) is that altogether” The shop assistant writes these numbers down on (44) and thinks for (45) . Then she says,“1 dollar and 62 cents.”“If I gave (46) ten dollars, how much will I get (47) ”“You’ll get (48) for change. Here you are. Here are the things you want.”“ (49) , I don’t want to buy anything.”“ (50) boy looks at the piece of paper and says politely, “This is one of my homework. Thank you very much. Can I take it away” “What!”says the shop assistant angrily.
阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选出能填入相应空白处的最佳选项。One day a little boy comes into a shop and (41) the shop assistant,“I want (42) twelve exercise books of 6 cents each and pencils of 10 cents each. (43) is that altogether” The shop assistant writes these numbers down on (44) and thinks for (45) . Then she says,“1 dollar and 62 cents.”“If I gave (46) ten dollars, how much will I get (47) ”“You’ll get (48) for change. Here you are. Here are the things you want.”“ (49) , I don’t want to buy anything.”“ (50) boy looks at the piece of paper and says politely, “This is one of my homework. Thank you very much. Can I take it away” “What!”says the shop assistant angrily.
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