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肺癌压迫喉返神经
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以下各题使用如下3个数据库表： 职员.dbf：职员号C(3)，姓名C(6)，性别C(2)，组号N(1)，职务C(10) 客户.dbf：客户号C(4)，客户名C(36)，地址C(36)，所在城市C(36) 订单.dbf：订单号C(4)，客户名C(4)，职员号C(3)，签订日期D，金额N(6.2)
2010年全国房地产开发和销售主要指标完成情况表 指标 单位 绝对数 比上年增长% 投资完成额 亿元 48267 33.2 其中：商品住宅 亿元 34038 32.9 其中：90平方米以下住宅 亿元 10665 27.4 房屋施工面积 万平方米 405539 26.6 其中：商品住宅 万平方米 314943 25.3 房屋新开工面积 万平方米 163777 40.7 其中：商品住宅 万平方米 129468 38.8 房屋竣工面积 万平方米 7596l 4.5 其中：商品住宅 万平方米 61216 2.7 商品房销售面积 万平方米 104349 10.1 其中：商品住宅 万平方米 93052 8.0 本年资金来源 亿元 72494 25.4 其中：国内贷款 亿元 1254.0 10.3 其中：个人按揭贷款 亿元 9211 7.6 本年购置土地面积 万平方米 40970 28.4 完成开发土地面积 万平方米 21254 -7.7 土地购置费 亿元 9992 65.9 2010年全国房地产业完成开发土地面积比上年下降了7.7%，原因可能是( )。
If you left your book on the table overnight, you would find the following morning that it was still exactly when you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia. The following examples show the truth of this law.(a) Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the tablecloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed.(b) Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will notice that the coin drops into the jar.(c) Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind. Which of the following is an example of inertia
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