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题目总数20 平均正确率 51% 预计耗时 83min 完成人数 5851
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题号 题目内容 耗时/秒 平均正确率 操作
SC-967m3h
Scientific evidence suggests that the benefits arising from consumption of alcohol are greatest [u]w 248 90%

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SC-fd6m4h
During the same period in which the Maya were developing a hieroglyphic system of writing, the Aztec 248 71%

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SC-7b1m5h
Although ice particles in the upper atmosphere benefit Earth in that they reflect and absorb solar r 248 69%

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SC-366m6h
The survival of coral colonies, which are composed of innumerable tiny polyps living in a symbiotic 248 79%

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SC-044m7h
A recent poll indicates that many people in the United States hold a combination of conservative and 248 67%

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SC-980m8h
Genetic engineering sometimes entails [u]plant or animal genes' getting spliced into other species' 248 95%

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SC-5bbm9h
Those skeptical of the extent of global warming argue that short-term temperature data are an inadeq 248 59%

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SC-b74mah
Once made exclusively from the wool of sheep that roam the Isle of Lewis and Harris off the coast of 248 92%

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SC-a9dmbh
[u]Since 1990 the global economy has grown more than it did during the 10,000 years from the beginni 248 50%

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SC-d6fmch
[u]With no natural predators and expanses of green suburban neighborhoods that allow no hunting, wil 248 59%

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SC-793mdh
Studies that have compared the different types of insects in coffee plantations [u]and tropical fore 248 91%

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SC-ab8meh
The two oil companies agreed to merge their refining and marketing operations in the Midwest and the 248 86%

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SC-ea8mfh
[u]Britain's economic growth was slower in the mid-1970's and its decline much more rapid in the sub 248 83%

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SC-b35mgh
Greatly influenced by the Protestant missionary Samuel Kirkland, the Oneida [u]was the only one of t 248 30%

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SC-ed8mhh
With a new park, stadium, and entertainment complex along the Delaware River, Trenton, New Jersey, i 248 75%

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SC-29bmih
Unlike crested wheatgrass, an alien species from Siberia that forms only shallow roots and produces 248 69%

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SC-007mjh
The ecosystems of barrier islands are extremely vulnerable--[u]whether from natural processes like s 248 83%

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SC-07dmkh
If current trends continue, by the year 2010 carbon emissions in the United States [u]will soar to a 248 44%

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SC-983mlh
An international group of more than 2,000 scientists [u]project an average global warming that will 248 45%

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SC-b3cmmh
Pioneered by scientists at Los Alamos National Laboratory, [u]BEAM robots are not programmed to walk 248 64%

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