American children perform more poorly in athletic tests of speed, strength, and endurance than do their European contemporaries.
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AAmerican children perform more poorly in athletic tests of speed, strength, and endurance than do
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BThe American child performs more poorly in athletic tests of speed, strength, and endurance as does
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CAmerican children perform more poorly in athletic tests of speed, strength, and endurance than does
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DThe American child performs more poorly in athletic tests of speed, strength, and endurance as do
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EThe American child performs more poorly in athletic tests of speed, strength, and endurance than do
显示答案
正确答案: A