单项选择题
The effect of wind on exposed areas of the vessel is most noticeable when（）.
A.backing B.going slow ahead C.going full ahead D.turning
单项选择题 The diurnal variation of pressure is most noticeable（）.
单项选择题 The diurnal pressure variation is most noticeable in the（）.
单项选择题 The daily recurring pattern of pressure changes most noticeable in low latitudes is the （）.
