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社会的物质性有哪些主要表现？
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Debate over the Use of Renewable EnergyAusubel of Rockefeller University in New York, US says the key renewable (可再生的) energy sources, including sun, wind and biofuels, would all require vast amounts of land if developed up to large scale production - unlike nuclear power. That land would be far better (51) alone, he says. Renewables look (52) when they are quite small. But if we start producing renewable energy on a large (53) , the fallout (结果) is going to be horrible.Ausubel draws his conclusions by analysing the amount of energy that renewables, natural gas and nuclei (原子核) can (54) in terms of power per square metre of land used. Moreover, he claims that (55) renewable energy use increases, this measure of efficiency will decrease as the best land for wind, biofuels, and solar power gets used up.Solar power is much more (56) than biofuel in terms of the area of land used, but it would still (57) 150 square kilometres of photovoltaic (光电的) cells to match the energy production of the 1000 MW nuclear plant. In another example, he says (58) the 2005 US electricity demand via wind power alone would need 780,000 square kilometres, an area the (59) of Texas.However, several experts are highly critical of Ausubel’s (60) . John Turner of the US government’s National Renewable Energy Laboratory says that even if the US got all of its (61) from solar energy, it would still need less than half the amount of land that has been paved over (62) highways. Further, it need not (63) up additional land. The US could get a quarter of its energy just from covering rooftops of existing buildings, he says.According to Turner, the same "dual use" also (64) to wind power. "The footprint for wind is only 5% of the land that it (65) . Farmers can still farm the land that the turbines are on." Turner says looking solely at land use is an oversimplification of the issue. 61（）
心房颤动的心房率是（）
案例一（一）资料2009年4月，某审计组对甲公司2008年度财务收支情况进行审计。相关情况和资料如下：1.审计人员在抽查记账凭证时发现，部分记账凭证上的审核与编制为同一人。经进一步了解，财会部门未建立表、账、证之间的定期核对制度。2.审计人员抽取了2008年不同月份的若干张客户订货单，检查销售业务的授权审批情况。3.审计人员对财会部门编制的应收账款明细表进行了复算，并与应收账款总账和报表进行了核对。4.审计人员对应收账款进行了函证，根据回函内容，编制了应收账款函证汇总分析表。5.审计人员对银行存款业务进行审计时，对支出金额在10万元以上的业务逐项审查；对支出金额在5万元至10万元之间的，随机抽取20%的业务进行审查；对支出金额在5万元以下的，随机抽取l%的业务进行审查。（二）要求：根据上述资料，为下列问题从备选答案中选出正确的答案。 “资料4”中，审计人员编制的应收账款函证汇总分析表按来源进行分类应该属于（）。
我国传染病的流行现状
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