【单选题】【消耗次数：1】
依据种子进入市场的顺序和推广状况，种子可分为投入期种子、______、成熟期种子和______。
①
在途种子、成长期种子
②
库存种子、衰退期种子
③
成长期种子、衰退期种子
④
商品种子、成长期种子
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