无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

The overall set in Malacca straight is to the NW, but from May to September there is a tendency for SE sets to prevail in some N and central parts.In this sentence,“set”refers to().

A.The direction of traffic flow
B.The direction of current
C.The direction of monsoon
D.The direction of wind

微信掃碼免費(fèi)搜題