单项选择题
MAINLY VARIABLE 3 to 4 VEERING NELY 5 TOMORROW MORNING．This forecast refers to（）in the designated area.
A.visibility B.winds C.sea D.fog
单项选择题 MAINLY GOOD BECOMING MODERATE.This forecast probably refers to（）in a certain area.
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（）.
