猜想①：与蔬菜所处环境的温度有关
猜想②：与蔬菜的表面积有关
猜想③：与蔬菜的表面空气的流动速度有关.
为了检验上述的猜想是否正确，小军按下图进行了四次实验（实验器材除B中有未剖开的胡萝卜，其余的均已剖开）
一 What do you think of Sam?
— He is very . He doesn't like to meet and talk to people.
