GRE阅读逻辑练习题（9）_GRE阅读

GRE阅读逻辑练习题（9）

　　 The test road was selected to include a great variety of the sorts of road conditions that drivers in California are likely to encounter.

　　10. Which of the following, if true, most logically completes the passage?

　　Every fusion reaction releases neutrinos. To test a hypothesis about the frequency of fusion reactions in the Sun, physicists calculated the number of neutrinos the Sun would produce annually if the hypothesis were correct. From this they estimated how many neutrinos should pass through a particular location on Earth. The fact that far fewer neutrinos were counted than were predicted to pass through the location would seem to prove that the hypothesis is wrong, except that------.

　　 the physicists, using a different method for estimating how many neutrinos should reach the location, confirmed their original estimate

　　 there are several competing hypotheses about the frequency of solar fusion reactions

　　 there is not enough energy in the Sun to destroy a neutrino once it is released

　　 the method used to count neutrinos detects no more than approximately ten percent of the neutrinos that pass through

　　 neutrinos released in the fusion reactions of other stars also reach the Earth

　　11.An economist concluded that Kregg Company deliberately discriminated against people with a history of union affiliation in hiring workers for its new plant. The economists evidence is that, of the 1,500 people hired to work at the new plant, only 100 had ever belonged to a labor union, whereas in Kregg Companys older plants, a much higher proportion of workers have a history of union affiliation.