Mississippi
【正确答案】：a. Lying between the Appalachian Mountains and the Rocky Mountains is one of the world’s great continental rivers — the Mississippi.
b. The Mississippi proper rises in the lake region in North Minnesota and flows south to the Gulf of Mexico.
c. It is 3,782 kilometers long.
d. The Mississippi has been called “father of waters” or “old man river”.
【题目解析】：参见教材P177。
掌握“Land(USA)”知识点。
