天宫一号是中国第一个目标飞行器和空间实验室．图为“天宫一号”目标飞行器运行示意图，比图中所示天体系统高一级的天体系统是

题干

天宫一号是中国第一个目标飞行器和空间实验室．图为“天宫一号”目标飞行器运行示意图，比图中所示天体系统高一级的天体系统是（　　）

A：总星系

B：银河系

C：太阳系

D：地月系

上一题下一题 0.0难度选择题更新时间:2016-07-19 01:39:58

B

Name	Personal information
Norman Bethune	Born in 1890,A doctor in Canada Died in November, 1939 in China, Came to China in March 1938
Celine Dion	Born in Canada, A singing star, In 1997 sang My Heart Will Go On for the film Titanic
Thomas Edison	Born in 1847,in USA, Made over 1,000 inventions, Died in 1931
Mark Twain	Born in 1835, in USA, A writer in USA, Died in 1910, Wrote The Adventure of Tom Sawyer
Bill Gates	Born in 1955, in USA, Wrote Business @the Speed of Thought, Owns Microsoft Company