South of the Hudson River,Appalachian Moutains are divided into 3 main section
s, among which the Blue Ridge has most of the highest peaks of the mountain sy
stem.選錯
答案是the Appalachian Moutains
但是我想問 方位South前面不是也應該加the嗎?

The south 是指南邊 不一定是mountain 吧話說托福不會這樣考吧