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【题目】北京时间20161017730分,由我国航天员景海鹏和陈冬驾乘的神州十一号载人飞船成功发射。神舟十一号飞行任务是我国第6次载人飞行任务,也是中国持续时间最长的一次载人飞行任务,总飞行时间将长达33天。20161019日凌晨,神舟十一号飞船与天宫二号自动交会对接成功。回答下列问题。

1

A. 铜陵市昼长夜短

B. 我国正午太阳高度角都达一年中最小值

C. 三沙市该日太阳从东北方升起

D. 地球公转速度正在加快

2

A. 总星系 B. 地月系 C. 银河系 D. 太阳系

【答案】

1D

2B

【解析】试题分析:

1】由材料可知,神舟十一号发射时间为1017日,太阳直射南半球,北半球各地昼短夜长,A错。我国位于北半球,正午太阳高度随着太阳直射点南移,冬至日时正午太阳高度最小,B错。太阳直射南半球,全球各地有昼夜交替地区太阳东南升,西南落,C错。地球公转速度在近日点(1月初)最快,D对。故选D

2】天宫二号围绕地球运动,组成的天体系统中心天体为行星,属于行星系,与地月系属于同一等级,故选B

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