A.可使果樹(shù)連年豐產(chǎn) B.提高坐果率 C.提高果實(shí)品質(zhì) D.使樹(shù)體健壯
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A.檢查成活與補(bǔ)接 B.防曬保濕 C.解綁設(shè)支架 D.剪砧與除萌