三百四十是由____个百和____个十组成的。
It's time to watch "Where Are We Going, Dad?" Let's _______ the TV and watch it.
下列名人中:①比尔盖茨②高斯③刘翔④诺贝尔⑤陈景润⑥陈省身⑦高尔基⑧爱因斯坦,其中是数学家的是( )