在草履虫培养液中加入适量碳素墨汁几分钟后将草履虫制成临时装片在显微镜下观察被染成�色的结构最可能是a.伸缩泡b.食物泡c.细胞质d.细胞核 Template




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tomski在草履虫培养液中加入适量碳素墨汁几分钟后将草履虫制成临时装片在显微镜下观察被染成�色的结构最可能是a.伸缩泡b.食物泡c.细胞质d.细胞核 coloring