A:方向
B:美丽的色彩
C:比例尺
D:图例和注记
阅读短文,下列问题
B
Amy
I like singing. I can play the guitar and the piano. I want to join the music club.
Bill
Do you want to know my favorite sport? I like playing basketball very much.
I can playing it well.
Jackie
I like playing the piano very much. I often play the piano after school.
Frank
My favorite sport is playing soccer, and I’m good at it.
一个人在行动中坚持决定,百折不挠地克服重重困难去达到行动目的的意志品质是( )
实验内容
实验结论
A
燃着的木条置于一集气瓶瓶中,木条立即熄灭
气体一定是CO2或N2
二氧化硫气体通入紫色石蕊试液中,石蕊试液变红色
二氧化硫具有酸性
C
用玻璃棒分别蘸取酒精和水,放在酒精灯火焰上加热片刻
燃烧的条件之一是物质具有可燃性
D
氯化钡溶液滴入某溶液中,出现白色沉淀
溶液中可能含有CO32﹣或Ag+