由吕坤个人搜集整理的《天籁集》是我国第一部儿歌专集。 ()

逻辑表达式(a>b || b==5)的相反表达式为 (a>b && b==5)。() 点击查看答案

In the 1950s and 1960s in an Irish family there were 2 or 3 children on average.() 点击查看答案