3.13 逻辑题

韩小宁

1、In Patton City, days are categorized as having heavy rainfall (more than two inches), moderate rainfall (more than one inch, but no more than two inches), light rainfall (at least a trace, but no more than one inch), or no rainfall. In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall for the year was 20 percent higher in 1990 than in 1910.

If the statements above are true, then it is also possible that in Patton City

A.the number of days with heavy rainfall was lower in 1990 than in 1910
B.the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910
C.the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
D.the total number of inches of rain that fell on days with moderate rainfall in 1990 was more than twice what it had been in 1910
E.the average amount of rainfall per month was lower in 1990 than in 1910



2、Transnational cooperation among corporations is experiencing a modest renaissance among United States firms even though projects undertaken by two or more corporations under a collaborative agreement are less profitable than projects undertaken by a single corporation. The advantage of transnational cooperation is that such joint international projects may allow United States firms to win foreign contracts that they would not otherwise be able to win.

Which of the following is information provided by the passage above?

A.Transnational cooperation involves projects too big for a single corporation to handle.  .
B.Transnational cooperation results in a pooling of resources leading to high-quality performance.  .
C.Transnational cooperation has in the past been both more common and less common than it Is now among United States firms.  .
D.Joint projects between United States and foreign corporations are not profitable enough to be worth undertaking.  .
E.Joint projects between United States and foreign corporations benefit only those who commission the projects.  



3、Following several years of declining advertising sales, the Greenville Times reorganized its advertising sales force. Before reorganization, the sales force was organized geographically, with some sales representatives concentrating on city-center businesses and others concentrating on different outlying regions. The reorganization attempted to increase the sales representatives' knowledge of clients' businesses by having each sales representative deal with only one type of industry or of retailing. After the reorganization, revenue from advertising sales increased.

In assessing whether the improvement in advertising sales can properly be attributed to the reorganization, it would be most helpful to find out which of the following?

A.What proportion of the total revenue of the Greenville Times is generated by advertising sales?  .
B.Has the circulation of the Greenville Times increased substantially in the last two years?  .
C.Among all the types of industry and retailing that use the Greenville Times as an advertising vehicle, which type accounts for the largest proportion of the newspaper's advertising sales?  .
D.Do any clients of the sales representatives of the Greenville Times have a standing order with the Times for a fixed amount of advertising per month?  .
E.Among the advertisers in the Greenville Times, are there more types of retail business or more types of industrial business?  


4、Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally, deer ticks pick up the bacterium while in the larval stage by feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. If the population of these other species were increased, more of the larvae would be feeding on uninfected hosts, so the number of ticks acquiring the bacterium would likely decline.

Which of the following would it be most important to ascertain in evaluating the argument?

A.Whether populations of the other species on which deer tick larvae feed are found only in areas also inhabited by white-footed mice .
B.Whether the size of the deer tick population is currently limited by the availability of animals for the tick's larval stage to feed on .
C.Whether the infected deer tick population could be controlled by increasing the number of animals that prey on white-footed mice
D.Whether deer ticks that were not infected as larvae can become infected as adults by feeding on deer on which infected deer ticks have fed.
E.Whether the other species on which deer tick larvae feed harbor any other bacteria that ticks transmit to humans


5、Scientists have made genetic modifications to cotton to increase its resistance to insect pests. According to farmers' report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not. Therefore, since the modified seed costs more than ordinary seed without producing yields of higher market value, switching to the modified seed would be unlikely to benefit most cotton farmers economically.

Which of the following would it be most useful to know in order to evaluate the argument?

A.Whether farmers who tried the modified cotton seed had ever tried growing other crops from genetically modified seed.
B.Whether the insecticides typically used on ordinary cotton tend to be more expensive than insecticides typically used on other crops .
C.Whether for most farmers who grow cotton it is their primary crop .
D.Whether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did .
E.Whether most of the farmers who tried the modified seed did so because they had previously had to use exceptionally large quantities of insecticide