单项选择题
A.生草法B.清耕法C.间作法D.覆盖法
A.顶芽和侧芽B.定芽和不定芽C.单芽和复芽D.花芽和叶芽
A.0.5%B.1%C.5%D.10%
A.6~8mB.6~12mC.10~15mD.12~15m
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