student teacher cook shoes glasses strong tall thin |
This is my family. My father is a . He's short and . My mother is a Chinese . She is and . She has black . I'm a . I have a white bag and black .
梦梦是这样估算的:13.4≈13 35.2≈35 35×0.8=28(元)
13×2+28+46=100(元),够。
9823009≈982万
在食物上滴一滴碘酒,观察其颜色变化 脂肪
将食物在白纸上挤压,干燥后观察痕迹 蛋白质
将食物用镊子夹住在酒精灯上烧,辨别气味 淀粉