防汛抗旱知识500问（一）

2026-03-23 网络整理佚名940

Key Point:第一部分治水典故、历史重大水旱灾害、水文化传承等一、单选题1.黄河历史上经常改道泛滥，造成灾害。一般认为，有史料记载的黄河第一次大改道发生在（）。A.公元前二十一世纪 B

Like 0ReportFavorite 0Tip 0Comment 0

>Related Comments

No comments yet, be the first to comment

>SimilarEncyclopedia

Featured Images

Let's start with the liver in the spring	The shandong institute of management's institute of labour relations, "two new" integration, works t
Word awareness, word nature. Ppt
How much is the long-salent ipr certification, how much is the long-salary ipr management system cer

RecommendedEncyclopedia

Customer Service: Customer Service Hotline
After-sales Service 18951535724

Email 1

Working Hours
Monday to Saturday 9:00-18:00