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A new hair-growing drug is being sold for three times the price, per milligram, as the drug’s maker charges for another product with the same active ingredien
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- at which
为什么选C呢？
Which of the following most logically completes the argument?
The irradiation of food kills bacteria and thus retards spoilage.However, it also lowers the nutritional value of many foods.For example, irradiation destroys a significant percentage of whatever vitamin B1 a food may contain.Proponents of irradiation point out that irradiation is no worse in this respect than cooking.However, this fact is either beside the point, since much irradiated food is eaten raw, or else misleading, since _______.
- many of the proponents of irradiation are food distributors who gain from food’s having a longer shelf life
- it is clear that killing bacteria that may be present on food is not the only effect that irradiation has
- cooking is usually the final step in preparing food for consumption, whereas irradiation serves to ensure a longer shelf life for perishable foods
- certain kinds of cooking are, in fact, even more destructive of vitamin B1 than carefully controlled irradiation is
- for food that is both irradiated and cooked, the reduction of vitamin B1 associated with either process individually is compounded
选E
帮忙翻译一下，本人真的不知道他在讲什么？
GWD6-Q2:脫節, pron, redundancy
According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.
- According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.
- By skimming along the top of the atmosphere, proponents of a proposed new style of aircraft say it could fly between most points on Earth in under two hours.
- A proposed new style of aircraft could fly between most points on Earth in under two hours, according to its proponents, with it skimming along the top of the atmosphere.
- A proposed new style of aircraft, say its proponents, could fly between most points on Earth in under two hours because of its skimming along the top of the atmosphere.
- According to its proponents, skimming along the top of the atmosphere makes it possible that a proposed new style of aircraft could fly between most points on Earth in under two hours.
选D为什么其余选项的错误是什么
GWD6-Q21:weaken
An overwhelming proportion of the most productive employees at SaleCo’s regional offices work not eight hours a day, five days a week, as do other SaleCo employees, but rather ten hours a day, four days a week, with Friday off.Noting this phenomenon, SaleCo’s president plans to increase overall productivity by keeping the offices closed on Fridays and having all employees work the same schedule—ten hours a day, four days a week.
Which of the following, if true, provides the most reason to doubt that the president’s plan, if implemented, will achieve its stated purpose?
不会做
- Typically, a SaleCo employee’s least productive hours in the workplace are the early afternoon hours.
- None of the employees who work four days a week had volunteered to work that schedule, but all were assigned to it by their supervisors.
- Working ten hours a day has allowed the most productive employees to work two hours alone each day in their respective offices relatively undisturbed by fellow employees.
- Employees at SaleCo are compensated not on the basis of how many hours a week they work but on the basis of how productive they are during the hours they are at work.
- Those SaleCo employees who have a four-day workweek do not take any of their office work to do at home on Fridays.
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GWD6-Q40:weaken
It is theoretically possible that bacteria developed on Mars early in its history and that some were carried to Earth by a meteorite.However, strains of bacteria from different planets would probably have substantial differences in protein structure that would persist over time, and no two bacterial strains on Earth are different enough to have arisen on different planets.So, even if bacteria did arrive on Earth from Mars, they must have died out.
The argument is most vulnerable to which of the following criticisms?
- It fails to establish whether bacteria actually developed on Mars.
- It fails to establish how likely it is that Martian bacteria were transported to Earth.
- It fails to consider whether there were means other than meteorites by which Martian bacteria could have been carried to Earth.
- It fails to consider whether all bacteria now on Earth could have arisen from transported Martian bacteria.
- It fails to consider whether there could have been strains of bacteria that originated on Earth and later died out.
选D不懂啊
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发表于 2011-7-6 23:11:31
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