第61题考古 V1 似乎是有道题目的变体：在某个离阿拉斯加2000英里的地方有个发掘人类11200年遗迹，但是阿拉斯加那个桥什么的在18000和11000年之间是不通的，结论是科学家说人类在18000年之前就来美洲了。问假设。 我选的是阿拉斯加的桥随着大陆板块变动会浮出水面。 疑似GWD-11-Q41: Charcoal from a hearth site in Colorado,2,000 miles south of Alaska,is known to be 11,200 years old. Researchers reasoned that, since glaciers prevented human migrationsouth from the Alaska-Siberia land bridge between 18,000 and 11,000 years ago,humans must have come to the Americasmore than 18,000 years ago. Which of the following pieces of new evidence would cast doubt on theconclusion drawn above? A. Using newradiocarbon dating techniques, it was determined that the charcoal from the Colorado site was atleast 11,400 years old. B. Another campsitewas found in New Mexicowith remains dated at 16,000 years old. C. A computersimulation of glacial activity showed that it would already have beenimpossible for humans to travel south overland from Alaska 18,500 years ago. D. Usingnew radiocarbon dating techniques, it was proved that an ice-free corridorallowed passage south from the Alaska-Siberia land bridge at least 11,400 yearsago. E. Studies ofvarious other hunting-gathering populations showed convincingly that, once theglaciers allowed passage, humans could have migrated from Alaska to Colorado inabout 20 years.
第62题GWD The traditional treatment ofstrep infections has been a seven-day course of antibiotics, either penicillinor erythromycin. However, since many patients stop taking those drugs withinthree days, reinfection is common in cases where these drugs are prescribed. Anew antibiotic requires only a three-day course of treatment. Therefore,reinfection will probably be less common in cases where the new antibiotic isprescribed than in cases where either penicillin or erythromycin is prescribed. Which of the following, iftrue, most strengthens the argument? A. Some of people who are allergic to penicillin arelikely to be allergic to the new antibiotic. B. A course of treatment with the new antibiotic costsabout the same as a course of treatment with either penicillin or erythromycin. C. The new antibiotic has been shown to be effectivein eradicating bacterial infections other than strep. D. Some physicians have already begun to prescribe thenew antibiotic instead of penicillin or erythromycin for the treatment of somestrep infections E. Regardless of whether they take atraditional antibiotic or the new one, most patients feel fully recovered aftertaking the drug for three days.
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发表于 2011-9-30 15:44:01
