“穷则独善其身，达则兼济天下”是哪一家的主张?(　)

明确把“关爱学生”作为一条中小学教师职业道德行为规范的是( )。

实物和标本是最真实的教具，所以在课堂教学中用实物和标本进行演示，达成直观的效果要优于教具。（）

宋代《清明上河图》的作者是()。

The structural view limits knowing a language to knowing its structural rules and vocabulary. The　communicative or notional-functional view adds the need to know how to _____ the rules and vocabulary to do　whatever it is one wants to do.