03-01-13

主句主语就是空格

which separates the areas from which waters flow either eastward to the Atlantic or westward to the Pacific

-》which separates the areas from which waters flow  eastward to the Atlantic or from which waters flow  westward to the Pacific

谢谢斑竹，有两个which连词，两个动词。 separates, flow

答案是the Rocky Mountains  那么主语的动词是什么？请指教！