虽然草履虫的结构很简单但它对外界的刺激能作出反应右图中甲乙表示两块载玻片分别在载玻片两端各滴一滴草履虫培养液并使两滴培养液连通当在 Template




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tomski虽然草履虫的结构很简单但它对外界的刺激能作出反应右图中甲乙表示两块载玻片分别在载玻片两端各滴一滴草履虫培养液并使两滴培养液连通当在 coloring