单项选择题
In revised editions of admiralty charts the（）are corrected first.
A.smaller scales B.larger scales C.smaller scales and larger scales D.moderate scales
单项选择题 In the doldrums you can expect（）.
单项选择题 In the doldrums you will not have（）.
单项选择题 In the northern hemisphere, the largest waves or swells created by a typhoon or hurricane will be located（）.
