摘要:从A.B.C.D四个选项中选出与所给句子意义相同或相近的选项.1.Attempts had been made by others to classify plant species into groups,but the breakthrough came with the work of Carl Linnaeus. A.Carl Linnaeus started the research in plant species and succeeded. B.Carl Linnaeus and others tried to classify plant species into groups and succeeded. C.Others attempted to classify plant species into groups but Carl Linnaeus made achievements in it. D.Others classified plant species into groups,but Carl Linnaeus didn?t.

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