1．欲选择一条纵向坡度不超过2%的路线,设图上等高距为2m，地形图的比例尺为1∶1000，则路线通过相邻两条等高线的最短距离为

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1．欲选择一条纵向坡度不超过2%的路线,设图上等高距为2m，地形图的比例尺为1∶1000，则路线通过相邻两条等高线的最短距离为

A.
100m

B.
150m

C.
50m

D.
200m

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建筑测量

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题型描述: 阅读理解In the United States, 30 percent of the adult population has a “weight problem”. To many people, the cause is obvious: they eat too much. But scientific evidence does little to support this idea. Going back to the America of the 1910s, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less and didn’t watch television. Several modern studies, moreover, have shown that fatter people do not eat more on the average than thinner people. In fact, some investigations, such as the 1979 study of 3,545 London office workers, report that, on balance, fat people eat less than slimmer people. Studies show that slim people are more active than fat people. A study by a research group at Stanford University School of Medicine found the following interesting facts: The more the men ran, the more body fat they lost. The more they ran, the greater amount of food they ate. Thus, those who ran the most ate the most, yet lost the greatest amount of body fat. (183 words)1、 The physical problem that many adult Americans have is that _ _ _ _ _ _ _ _ . A. they work too hard B. they are too slim C. they lose too much body fat D. they are too fat 2、 According to the article, given 500 adult Americans, _ _ _ _ _ _ _ people will have a “weight problem.” A. 150 B. 50 C. 30 D. 100 3、 Is there any scientific evidence to support that eating too much is the cause of a “weight problem?” A. Of course, there is some evidence to show this is true. B. There is hardly any scientific evidence to support this. C. Yes, there is plenty of evidence. D. We don’t know because the information is not given. 4、 In comparison with the adult American population today, the Americans of the 1910s _ _ _ _ _ _ _ . A. ate less food but had more activities B. ate less food and had less physical exercise C. ate more food and had more physical activities D. had more weight problems 5、 Modern scientific researches have reported to us that _ _ _ _ _ _ _ _ . A. thin people run less, but have greater increase in food intake B. fat people eat more food than slim people and are more active C. fat people eat more food than slim people but are less active D. fat people eat less food and are less active统考英语B

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