A：as many girls as boy
B：as many girl as boy
C：as many girls as boy
D：as many girl as boy
对流层的天气复杂多变，在成云致雨过程中起重要作用的大气成分是 ( )
— We will have whatever you want.
古罗马著名政治家、哲学家西塞罗说：“懂得生命真谛的人，可以使短促的生命延长。”这里“生命延长”指的是（ ）
