随机调查一果园中某品种苹果盛果期枝条生长量，50株苹果树枝条...540.5-45.5果树数3382412
随机调查一果园中某品种苹果盛果期枝条生长量，50株苹果树枝条...540.5-45.5果树数3382412
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随机调查一果园中某品种苹果盛果期枝条生长量，50株苹果树枝条...540.5-45.5果树数3382412