【单选题】some juice and milk in our fridge(冰箱).
【单选题】Are there many people there?
【单选题】How many umbrellas were there in Jack's home?
【简答题】在同一个问题规模下,如果算法执行所需的基本运算次数取决于某一特定输入时,可以用平均性态和 _________________ 两种方法来分析算法的工作量。
【简答题】_________类是Java所有类的根类
【单选题】Where ____rubbish, there are flies.