原题
录音 1
What does the speaker imply about the Mississippi River?
AIt contained resources that were used for construction.
BIt was the main source of food for people at Poverty Point.
CIt connected people at Poverty Point to distant areas.
DIt enabled people from Poverty Point to relocate to other regions.
正确答案：C
解题思路
老师暂未填写解题思路。