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男性，21岁。在施工中不慎坠楼，腰剧痛，双下肢感觉运动正常，考虑腰椎损伤。

现场搬运的正确方法是（）

A.平托或滚动法

B.单人搂抱法

C.双人搂抱法

D.侧卧搬运法

E.背驮法

答案

参考答案：A

解析：

对疑有脊柱骨折者，为避免损伤脊髓或加重脊髓损伤，一定要保持好脊柱的位置，不能随意搬动，通常采用平托或滚动法。

单项选择题

如图9-10所示的数据库系统层次示意图中，数据库管理员能够管理操作的有
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单项选择题

Until recently, most population growth has occurred in relatively dense urban environments. In (91) words, even if we were witnessing rapid population growth, that would not mean that the (92) were filling in with people. (93) , the urban areas would tend to become more crowded. Historically, we find that people have moved to (94) the jobs were. Jobs were usually in ports or locations with many natural (95) . After transportation became relatively cheap, other geographical locations became (96) of economic activity. One factor that determines where people will move to, even when transportation becomes cheap, is (97) . And individuals working in cities (98) higher incomes than those working in (99) areas. Hence, population has tended until the 1970s to (100) in our major urban centers. Recently population has (101) out of the Northeast to the South and to the West for the more pleasant climates. If people did not (102) from living in large cities, there would likely be a much more even population distribution (103) our entire land area. Probably, if this (104) the case, there would be less concern over population (105) Indeed, one need only (106) a cross-country drive or plane trip to realize how (107) populated these United States really are. This is not to say that we should or should not do something about (108) growth. The shortage of people in certain areas merely demonstrates that overpopulation in the United States is really only a problem in (109) urban environments. And this problem may be slowly correcting (110) .

A．where

B．there

C．what

D．how
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