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> 2012年入秋以来，市场上的芹菜、白菜和生姜等农产品价格比往年下降了许多，农民损失严重．出现这种现象的主要原因是 A.生产技术改进 B.运输渠道畅通 C.市场供应充裕 D.优良品种培育

问题：

发布时间：2024-09-07

2012年入秋以来，市场上的芹菜、白菜和生姜等农产品价格比往年下降了许多，农民损失严重．出现这种现象的主要原因是

A.生产技术改进
B.运输渠道畅通
C.市场供应充裕
D.优良品种培育

参考答案：

提问用户：OH***z95

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