为什么用degrees?Water freezes at 0 degrees Celsius.这句话,degree为何用复数形式?

为什么用degrees?Water freezes at 0 degrees Celsius.这句话,degree为何用复数形式? Water freezes at the temperature of 0 degrees Celsius.水在摄氏零度结冰.这里的degree为什么用复数啊?0算是复数吗? water boils at 100 degrees Celsius.为什么boil要加s? at zero degrees 零度为什么还要用复数? Water  at a temperature of zero degrees Celsius.A.having frozenB.freezingC.freezeD.freezes为什么选择第四个?water不是不可数名词吗? zero degrees为什么degrees是复数?几度是单数? When _____to 0 degrees,water will be changed into ice.A.being cooled B.having cooled c.cooled B.cooling 选哪个,为什么 to varying degrees,为什么呢?ing形式? 零度是zero degree还是zero degrees可是书上写的是Water freezes at zero degrees Centigrade. water为什么要用running 英语中名词（量词）的单复数问题Water freezes at 0 degrees Celsius.句中degree为什么加s?0是不是复数?1度时要加不加?零下度数要加不加?此外,表示1岁用year old 还是years old? when water gets to ---------degrees,it becomea iceA.100 B.60 C.0 Be careful.The temperature of the water is ninety degrees above zero.求翻译 When water is cooled below zero degrees Celsius,it freezes（翻译） 是0 degree centigrade还是0 degrees centigrade为什么 degree用于温度单复数为什么,zero degrees,不用单数, 什么是FR轿车?FR具体指的是什么?代表的又是什么?为什么要给锐志叫FR轿车? water不可数名词,为什么前面用some