单项选择题
As you approach Giles Bend Cutoff Light (mile 367.7 LDB)，what type of daymark would you see on the light structure?（）
A.Green diamond B.Green triangle C.Red diamond D.Red square
单项选择题 As the temperature of the air reaches the dew point，（）.
单项选择题 As the temperature of an air mass decreases，the（）.
单项选择题 As the South Equatorial Current approaches the east coast of Africa，it divides with the main part flowing south to form the warm（）.
