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第一部分选择题(共70分)(一)单项选择题:本大题共20小题,每小题2分,共40分。在每小题给出的4个选项中,只有一项是符合题目要求的。2005年10月6日至10日,地球穿越天龙座流星群的轨道。我国乃至北半球各地都可用肉眼观测到少见的天龙座流星雨,各地最佳观测时间是在日落后40分钟至深夜24时,而天龙座流星雨极盛期出现在北京时间10月8日23时前后。据此回答1～3题。1.材料中所述地理事象属于天体的是 ()
The first part of the multiple-choice questions (a total of 70 points) (a) a single multiple-choice questions: a total of 20 questions on the major problems, each small question 2 points, a total of 40 points. Only one of the four options given on each caption meets the requirements of the caption. From October 6 to October 10, 2005, the Earth crosses the orbit of the Draco meteorite. China and even the northern hemisphere can be observed with naked eye uncommon Draconian meteor shower, around the best observation time is 40 minutes after sunset to 24 midnight, and the peak of the Dragas meteor shower occurred around 23:00 Beijing time at 23 o’clock on the 8th. Answer 1 to 3 questions accordingly. 1. The material described in the image of the celestial body is ()