患者，男性，72岁，肥胖体型，同睡者发现其打鼾，一个晚上常有30多次的呼吸暂停，每次常常停止呼吸10秒。这种情况已有数年，此情况属于（）

[问答题]或者“全班同学都是团员”为假，或者“全班同学都不是团员”为假；“全班同学都不是团员”为假；所以“全班同学都是团员”为真。推理是否有效？为什么？

[单选题]流脑的主要致病因子是(     )

[单选题]与金黄色葡萄球菌毒力有关的因素（）。

[单选题]下图是中国网民年龄结构示意图，由此图可以得出的结论是（）

[单选题]关于桡骨头骨折，说法正确的是（）。

[问答题]SELECT语句中，何时使用分组子句，何时不必使用分组子句？

[单选题]请阅读Passage 2，完成第26~30小题。Passage 2“There is one and only one social responsibility of business,”wrote Milton Friedman, a Nobel prize-winning economist,“That is, to use its resources and engage in activities designed to increase its profits.”But even if you accept Friedman's premise and regard corporate social responsibility(CSR) policies as a waste of shareholders' money, things may not be absolutely clear-cut.New research suggests that CSR may create monetary value for companies-at least when they are prosecuted for corruption.The largest firms in America and Britain together spend more than $15 billion a year on CSR, according to an estimate by EPG, a consulting firm.This could add value to their businesses in three ways.First, consumers may take CSR spending as a“signal”that a company's products are of high quality.Second, customers may be willing to buy a company's products as an indirect way to donate to the good causes it helps.And third, through a more diffuse“halo effect,” whereby its good deeds earn it greater consideration from consumers and others.Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three.A recent study attempts to separate them by looking at bribery prosecutions under America's Foreign Corrupt Practices Act(FCPA).It argues that since prosecutors do not consume a company's products as part of their investigations, they could be influenced only by the halo effect.The study found that, among prosecuted firms, those with the most comprehensive CSR programmes tended to get more lenient penalties.Their analysis ruled out the possibility that it was firms' political influence, rather than their CSR stand, that accounted for the leniency: Companies that contributed more to political campaigns did not receive lower fines.In all, the study concludes that whereas prosecutors should only evaluate a case based on its merits, they do seem to be influenced by a company's record in CSR.“We estimate that either eliminating a substantial labour-rights concern, such as child labour, or increasing corporate giving by about 20% results in fines that generally are 40% lower than the typical punishment for bribing foreign officials,” says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect, rather than the other possible benefits, when they decide their do-gooding policies.But at least they have demonstrated that when companies get into trouble with the law, evidence of good character can win them a less costly punishment.The author views Milton Friedman's statement about CSR with ____ .

[单选题]可作为溶蚀性骨架片的骨架材料是（　　）。

[单选题]颈外静脉置管的适应症是（）

[判断题]需要生成条码的前提是，必须先选购一套商业化的编码软件，不能自己编制条码编码软件