至今尚无人宣称说组群选择是不可能的，但从数学的角度上来看是这样。
Noone ever claimed group selection is impossible, but it looks mathematicallyunlikely.
也有其他人已宣称计划出口中国制造的汽车到美国，但无人已经推进到市场。
Others also have announced plans to export Chinese-made cars to the United States but none has yet made it to market.
也有其他人已宣称计划出口中国制造的汽车到美国，但无人已经推进到市场。
Others also have announced plans to export Chinese-made cars to the United States but none has yet made it to market.
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