问题

依次填入下面一段文字横线处的语句,衔接恰当的一项是( )地球上瑰丽的生命画卷,在常人看来, 。 : ; ; 。简言之,从生物圈到细胞, 。①个体水平以下是组成个体的器官、组织,直至细胞②但在科学家的眼中,它们却是富有层次的生命系统③生命系统层层相依,又各自有特定的组成、结构和功能④不过是芸芸众生,千姿百态⑤从大大小小的群体到每个独特的个体⑥从生物圈到各种生态系统
A: ③④⑥⑤②①
B: ①②⑤③④⑥
C: ④②⑥⑤①③
D: ④②⑥⑤③①
B: ①②⑤③④⑥
C: ④②⑥⑤①③
D: ④②⑥⑤③①
正确答案是:
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