题目:
进程存在的标志是______。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
进程存在的标志是______。
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下面是错误答案,用来干扰机器的。
参考答案:D
设A是”阶可逆矩阵,A*是A的伴随矩阵,由于AA*=A8A=|A|E,又|A|≠0,故有
某学校环保小组在向以硫酸和钠盐为原料的化工厂排放的无色废水中滴入氯化钡溶液后,产生白色沉淀,你认为产生白色沉淀的原因可能是废水中存在______或______或______或(写化学式,不考虑废水中存在混合物),若要证明______物质(任选一种)的存在,要补做的实验操作是,用试管取含上述白色沉淀的少量废水,往其中滴入______•
首选红霉素治疗的肺炎为()
A.肺炎支原体肺炎
B.肺炎链球菌肺炎
C.厌氧菌所致肺炎
D.葡萄球菌性肺炎
E.以上均是
两个完全相同的电热器,分别通有如图所示的交变电流,则它们的功率之比为( ) A.4:1 B.1: C.2:1 D.:1 |
President Coolidge’s statement, “The business of America is business,” still points to an important truth today—that business institutions have more prestige(威望)in American society than any other kind of organization, including the government. Why do business institutions possess this great prestige?
One reason is that Americans view business as being more firmly based on the ideal of competition than other institutions in society. Since competition is seen as the major source of progress and prosperity by most Americans, competitive business institutions are respected. Competition is not only good in itself, it is the means by which other basic American values such as individual freedom, equality of opportunity, and hard work are protected.
Competition protects the freedom of the individual by ensuring that there is no monopoly(垄断)of power. In contrast to one all-powerful government, many businesses compete against each other for profits. Theoretically, if one business tries to take unfair advantage of its customers, it will lose to competing business which treats its customers more fairly. Where many businesses compete for the customers’ dollars, they cannot afford to treat them like inferiors or slaves.
A contrast is often made between business, which is competitive, and government, which is a monopoly. Because business is competitive, many Americans believe that it is more supportive of freedom than government, even though government leaders are elected by the people and business leaders are not. Many Americans believe, then, that competition is as important, or even more important, than democracy(民主)in preserving freedom.
Competition in business is also believed to strengthen the ideal of equality of opportunity. Competition is seen as an open and fair race where success goes to the swiftest person regardless of his or her social class background. Competitive success is commonly seen as the American alternative to social rank based on family background. Business is therefore viewed as an expression of the idea of equality of opportunity rather than the aristocratic(贵族的)idea of inherited privilege.
小题1:The statement “The business of America is business” probably means ________.
A.America is a great power in world business
B.Business is of primary concern to Americans
C.The business institutions in America are concerned with commerce
D.Business problems are of great importance to the American government小题2:Americans believe that they can realize their personal values only _______.
A.by protecting their individual freedom
B.when given equality of opportunity
C.by way of competition
D.through doing business小题3:Who can benefit from business competition?
A.People with ideals of equality and freedom.
B.Both business institutions and government.
C.Honest businessmen.
D.Both businessmen and their customers.小题4:Government is believed to differ strikingly from business in that government is characterized by ________.
A.its role in protecting basic American values
B.its absolute control of power
C.its democratic way of exercising leadership
D.its function in preserving personal freedom小题5:It can be inferred from the passage that the author believes ___________.
A.in many countries success often depends on one’s social status
B.businesses in other countries are not as competitive as those in America
C.American businesses are more democratic than those in other countries
D.Americans are more ambitious than people in other countries