西北需要建立节水型农业,
大兴土木劲儿用反了。
再有全球变暖,
改变降水分布,也是大问题。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy