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  • 【逻辑CR】

    The Earth's rivers constantly carry dissolved salts into its oceans. Clearly, therefore, by taking the resulting increase in salt levels in the oceans over the past hundred years and then determining how many centuries of such increases it would have taken the oceans to reach current salt levels from a hypothetical initial salt-free state, the maximum age of the Earth's oceans can be accurately estimated.Which of the following is an assumption on which the argument depends?

  • 【逻辑CR】

    Press Secretary:  Our critics claim that the President’s recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties.  They offer as evidence the fact that 90 percent of the projects canceled were in such districts.  But all of the canceled projects had been identified as wasteful in a report written by respected nonpartisan auditors.  So the President’s choice was clearly motivated by sound budgetary policy, not partisan politics.Which of the following is an assumption on which the press secretary’s argument depends?

  • 【句子改错SC】

    【OG20-P810-885题】Mauritius was a British colony for almost 200 years, excepting for the domains of administration and teaching, the English language was never really spoken on the island. 

  • 【逻辑CR】

    【OG20-P563-615题】 Executives at the Fizzles Beverage Company plan to boost profits in Country X on their range of fruit-flavored drinks by introducing new flavors based on  tropical fruits that are little known there.The executives reason that since the fruit drinks of other companies have none of these flavors,Fizzles will not have to compete for customers and thus will be able to sell the drinks at a higher price.Which of the following, if true, presents the most serious potential weakness of the plan?

  • 【句子改错SC】

    【OG20-P799-834题】Some anthropologists believe that the genetic homogeneity evident in the world’s people is the result of a “population bottleneck”—at some time in the past our ancestors suffered an event, greatly reducing their numbers and thus our genetic variation. 

  • 【逻辑CR】

    Finding of a survey of Systems magazine subscribers:  Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five. Finding of a survey of advertisers in Systems magazine:  Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under age thirty-five. For both of the findings to be accurate, which of the following must be true?

  • 【逻辑CR】

    Surveys in Domorica indicate that only 10 percent of Domoricans in their twenties read a newspaper regularly, while more than half of all Domoricans over thirty read a newspaper regularly. Although Domoricans in their twenties constitute a large proportion of the population, newspaper publishers nonetheless predict that ten years from now, the percentage of Domoricans who regularly read a newspaper will probably be no lower than it is today.Which of the following, if true, provides the strongest grounds for the newspaper publishers’ prediction?

  • 【句子改错SC】

    【OG20-P804-855题】Companies are relying more and more on networked computers for such critical tasks as inventory management, electronic funds transfer, and electronic data interchange, in which standard business transactions are handled via computer rather than on paper.

  • 【句子改错SC】

    【OG20-P798-827题】Ramón pointed out that food high in whole-grain fiber creates the energy we need to fight illnesses—as do vegetables and lean proteins.

  • 【句子改错SC】

    【OG20-P808-874题】Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear. 

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