单项选择题
A.in the southeast quadrant of the storm
B.directly behind the storm center
C.forward and to the right of its course
D.behind and to the left of its course
单项选择题 In weather report, position good means that（）.
单项选择题 In which voyage, between two points, is the rhumb line distance not approximately the same as the great circle distance?（）.
单项选择题 Intertropical convergence zone over south Phillippine passing over Mindanao northern Sulu and Palawan. This paragraph is likely to be under the heading of（）.