高原的地域分布在边缘地区呈现（）的分布。
A、向心分布
B、辐射分布
C、水平分布
D、垂直分布
参考答案：D
If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the northern hemisphere?（）.
A.East to northeast
B.East to southeast
C.North to northwest
D.South to southeast
灌溉效果
