美国高中微积分用exponential population model,initial population=250,
美国高中微积分用exponential population model,initial population=250,
population
population用什么修饰
the population of 和 a population of 的用
population用large还是big修饰?
number population 可以用big small
population可不可以用big ,small来修饰?
population用large还是big修饰?为什么?
用population 提问人口的句子
区分a population of/the population of
difference between population
小结"population"的用法?