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2,6,13,39,15,45,23,()。A.46B.66 C.68D.69
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2,-2,6,-10,22,()A.-36B.-40 C.-42D.-48
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1,6,15,28,()。A.36 B.39 C.42 D.45
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6,13,39,15,45,23,()A.69 B.66 C.68 D.46
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1,6,15,28,45,()A.70B.66C.60D.88
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1,7,15,27,45,()A.36B.52C.71D.74
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地球上恒温动物的总体平均温度接近多少℃?()A、36B、39C、42D、45