***曾十分风趣而深刻地说：“现在我们能造什么？能造桌子椅子，能造茶碗茶壶，能种粮食，还能磨成面粉，还能造纸。但是，一辆汽车、一架飞机、一辆坦克、一辆拖拉机都不能造。”因此，我国第一个五年计划的重点是发展（  ）

  Classical music is serious music．People usually enjoy it at a c____or in a theatre．Beethoven and Mozart are great c____musicians．

    Pop music often comes and goes quickly．It is usually about love and everyday life．Country music，____(摇滚)music and jazz are all pop music．They are very popular with young people．

    Folk music is ____(简单的)but special．Guo Lanying，Song Zuying and Tengger

 are____(著名的)for their folk songs．

下列哪一项不是小肠结构与吸收功能相适应的特点（　　）