问题
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The author mention Harlow’s experiment to show that____________. A.adults shou
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The experiences described by the author in the third paragraph are intended to show thatA.
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The reintroducing experience three years ago shows that man-raised parrots ______. A.
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The experiment showed that the smaller fish .A. fought over a feast B. went on diet wi
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The experiments show that high-fat diets______.A.
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An experiment showed that optimists were______.A.
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