题海让大学四年没有难题
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单选题 One of the basic problems with Copeland's four-kingdom system was

A. it did not classify fungi

B. it placed all single-celled organisms in one kingdom

C. it did not consider algae protists

D. basic differences in the mode of nutrition existed within his Kingdom Protoctista

E. it did not distinguish organisms with prokaryotic cells from those with eukaryotic cells

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时间:2026-03-28 00:23:29

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