33、上图是北极圈上某地上空看到的地球12月22日的昼夜分布示意图,C点为极点,阴影部分表示夜半球。读图回答。

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

   (1)图中各点,              点表示太阳直射点,该点的地理坐标为             

(2)此刻,全球以              经线和              经线为界分属两个日期。北京时间是              时。

   (3)下图中,与F点昼夜状况吻合的是             

   (4)120°E经线经过我国最大的城市群,试说明该城市群形成的有利条件。

 

 

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