单项选择题
MAINLY GOOD BECOMING MODERATE.This forecast probably refers to（）in a certain area.
A.visibility B.winds C.sea D.fog
单项选择题 Little or no change in the barometric reading over a twelve hour period indicates（）.
单项选择题 In the relatively calm area near the hurricane center，the seas are（）.
单项选择题 In the doldrums you will NOT have（）.
