The Dujiangyan Irrigation System was launched and completed by Li Bing, a governor of Sichuan 2000 years ago。
The Dujiangyan Irrigation System was launched and completed by Li Bing, a governor of Sichuan 2000 years ago。
A.正确
B.错误
正确答案:A
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时间:2022-05-24 19:43:26