题目内容
利用随机数表、随机数生成器或随机数骰子来抽取样本的方法称之为()抽样法。
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第二节 完型填空
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。
Sports and Sexes
In sports the sexes are separate. 【B1】 and men do not run or swim in the same races. Women are less strong than men. That 【B2】 is 【B3】 people say. Women are 【B4】 "the weaker sex", or if men want to please them, "the fairsex". But boys and girls are taught 【B5】 schools and universities. There are women 【B6】 are famous prime ministers, scientists and writers. And women live longer than men. 【B7】 European woman can expect 【B8】 until the age of 74; a man only until he is 68. Are women's bodies really weaker？ The fastest men can run a mile in 【B9】
4 minutes. The best women need 5 minutes. Women's times are always slower than 【B10】 , but some facts are a surprise. Some of the 【B11】 women swimmers today are girls. One of them swam 400 metres 【B12】 4 minutes and 21.2 seconds when she was only 16. The first "Tartan" in films was 【B13】 Olympic swimmer, Johnny Weissmuller. His fastest 400 meters was 4 minutes and 59. 1 seconds, 【B14】 is 37.9 seconds 【B15】 than a girl 50 years later! This does not mean that women are 【B16】 men 【B17】 . Conditions are very different now, and sport is much 【B18】 serious. It is 【B19】 serious that some women are given hormone injections. At the Olympics a doctor has to check 【B20】 the women are really women or not. It seems like that sport has many problems. Life can be very complicated when there are two separate sexes.
【B1】
若公司处在扩张时期,其“投资活动流入流出比”应较高;若企业处在衰退期或缺少投资机会时,则该比值应较低。()
企业对于跨年度的劳务，应采用完下百分比法确认收入。()
拆迁中认定违章建筑的是()。
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