化肥，杂交育种，水利，机械化，更关键的是受到教育的人

来源: speedingticket 于 2020-07-17 04:15:58 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.