终端接收站点使用的是()频段的卫星接收天线。
A.Ku
B.VH
C.C
D.Ka
参考答案:A
读图,回答下列问题.
(1)太阳直射点向北移动的时段是______和______;一年中只有一次太阳直射点是______,冬至日是______(填数码).
(2)“十一”国庆节时,太阳直射______半球.此时太阳直谢点在______和______点之间(填数码).
During the winter months,the southeast trade winds are().
A.per 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