单项选择题
During the winter months，the southeast trade winds are（）.
A.stronger than during the summer months B.weaker than during the summer months C.drier than during the summer months D.wetter than during the summer months
单项选择题 During the month of October the Sun’s declination is（）.
单项选择题 During the manufacture of line，yarns are twisted together in the（）.
单项选择题 During the day，a vessel picking up a submarine cable shall carry（）.
