9位学生的鞋号由小到大是:31,33,35,35,35,37,37,38,39这组数据的中位数和众数分别是( )
A:33,35
B:35,37
C:35,35
D:31,38
根据材料内容,选择最佳答案。
Name
Personal Information
Fei Junlong
Born in 1965 in Jiangsu, China
An astronaut (宇航员)
Traveled in Shenzhou VI in outer space with Nie Haisheng from October 12th to October 17th, 2005
Yao Ming
Born in 1980 in Shanghai, China
The son of two great basketball players
Joined the Houston Rockets in June, 2002
Jay Chou
Born in 1979 in Taiwan, China
A popular singer
Favorite music: Hip-Hop
Alfred Nobel (1833-1896)
Born in Sweden
A scientist
Known for the Nobel Prizes
Helen Keller (1880-1968)
Not able to see or hear
Worked hard and became one of the famous writers in America
Wrote a lot, such as The Story of My Life
材料是人类生存和发展的物质基础,合理使用材料可以改善我们的生活.
①居室装修所使的人造板材会释放出一种挥发性物质,长期接触会引起过敏性皮炎,免疫功能异常,该挥发性物质是____.
②玻璃是重要的硅酸盐产品,生产玻璃时,石灰石与石英反应的化学方程式为 ____