99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項(xiàng)選擇題

The edge of a hurricane has overtaken your vessel in the Gulf of Mexico,and the northwest wind of a few hours ago has shifted to the west. This is an indication that you are located in the().

A.navigable semicircle
B.dangerous semicircle
C.low pressure area
D.eye of the storm

微信掃碼免費(fèi)搜題