• 2022-05-29 问题

    Shade leaves have ( ) than sun leaves. A: more total chlorophyll pre raction center B: a high ratio of chlorophyll b to a C: Both 'more total chlorophyll pre raction center' and 'a high ratio of chlorophyll b to a' D: None of the others

    Shade leaves have ( ) than sun leaves. A: more total chlorophyll pre raction center B: a high ratio of chlorophyll b to a C: Both 'more total chlorophyll pre raction center' and 'a high ratio of chlorophyll b to a' D: None of the others

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