人内耳是需要视觉信息来保持平衡的，所以你闭着眼睛单腿站立就很难站稳。我实验的时候给我自己摔个大马趴，我老公哈哈大笑。我问我老公你能站多久，他说想站多久站多久。结果他站了十秒就摔了
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
