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某种细胞开始时有2个,1小时后分裂成4个并死去1个,2小时后分裂成6个并死去1个...
某种细胞开始时有2个,1小时后分裂成4个并死去1个,2小时后分裂成6个并死去1个,3小时后分裂成10个并死去1个,…,按照这样的规律下去,6小时后细胞的存活数为( )
A.67
B.71
C.65
D.30
考点分析:
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若|
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