仔细认真观看下面👇4个小视频并且完成4个问题 Watch the four videos below carefully and complete the following four questions (您不需要选择视频下方的选项，接着认真完成四个视频之后的问题 You don't need to choose the option below the videos and complete the questions after the four videos seriously.)
Q1:Video A[视频]
您不需要选择此项，请往下看 You do not need to select this option, please read down.
Q2:Video B[视频]
您不需要选择此项，请往下看 You do not need to select this option, please read down.
Q3:Video C[视频]
您不需要选择此项，请往下看 You do not need to select this option, please read down.
Q4:Video D[视频]
您不需要选择此项，请往下看 You do not need to select this option, please read down.
Q5:在以上4个视频中，你觉得机翼最最稳定（抖动最小）的是？In the above 4 videos, what do you think is the most stable paper plane by its wings?
Video A
Video B
Video C
Video D
Q6:在以上4个视频中，你觉得机翼稳定性排名第二（抖动排名第二小）的是？Among the above 4 videos, which video do you think the paper airplane wing stability ranks second?
Video A
Video B
Video C
Video D
Q7:在以上4个视频中，你觉得机翼稳定性排名第三（抖动排名第三小）的是？Among the above 4 videos, which video do you think the paper airplane wing stability ranks third?
Video A
Video B
Video C
Video D
Q8:在以上4个视频中，你觉得机翼最不稳定（抖动最剧烈）的是？In the above 4 videos, what do you think is the most unstable paper plane by its wings?
Video A
Video B
Video C
Video D
