下列都不属于细胞凋亡现象的是( ) ①脑细胞因缺血而死亡; ②

下列都不属于细胞凋亡现象的是(  )

脑细胞因缺血而死亡; 

人胚胎时期的尾后来消失了; 

艾滋病病毒侵染人体免疫细胞导致其裂解;

花冠在传粉后凋谢.

 

A

①②

B

③④

C

①③

D

②④

答案

C

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