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下列生物中,没有成形细胞核的单细胞生物是

A:病毒

B:细菌

C:草履虫

D:蘑菇

上一题 下一题 0.0难度 选择题 更新时间:2011-11-18 03:20:41

答案(点此获取答案解析)

B

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