Q22：“Life expectancy” is the average age at death of the entire live-bornpopulation. In the middle of the nineteenth century, life expectancy in NorthAmerica was 40 years, whereas now it is nearly 80 years. Thus, in those days,people must have been considered old at an age that we now consider the primeof life.以下哪个选项使以上结论不成立？
Q23：Scientists propose placing seismic stations on thefloor of the Pacific Ocean to warn threatened coastal communities on thenorthwestern coast of the United States of approaching tidal waves caused byearthquakes. Since forewarned communities could take steps to evacuate, many ofthe injuries and deaths that would otherwise occur could be avoided if thegovernment would implement this proposal.以下哪个问题最能衡量实施这一提议的效果？
Q24：It is true of both men and women that those who marryas young adults live longer than those who never marry. This does not show thatmarriage causes people to live longer, since, as compared with other people ofthe same age, young adults who are about to get married have fewer of theunhealthy habits that can cause a person to have a shorter life, most notablysmoking and immoderate drinking of alcohol.以下哪个选项最能为支持以上观点?
Q25：Because no employee wants to be associated with badnews in the eyes of a superior, information about serious problems at lowerlevels is progressively softened and distorted as it goes up each step in themanagement hierarchy. The chief executive is, therefore, less well informedabout problems at lower levels than are his or her subordinates at thoselevels.以上结论是基于以下哪个假设?
Q26：Neither a rising standard of living nor balancedtrade, by itself, establishes a country’s ability to compete in theinternational marketplace. Both are required simultaneously since standards ofliving can rise because of growing trade deficits and trade can be balanced bymeans of a decline in a country’s standard of living.以上陈述正确，那么对一个国家的竞争力的正确验证方式是其( )。
Q29：英译中The objective of theSir Martin Wood Science Prize for China is to promote and recognize the novelwork of young scientists working in the fields of low temperatures, highmagnetic fields and surface science in China. Oxford Instruments is aware thatthere is a critical and often difficult stage for many between completing theirPh.D. and gaining a permanent research position. The company therefore wouldlike to help individuals who are producing innovative work, by offeringassistance both financially and promoting their research work through a seriesof sponsorship programs.