《马关条约》的内容中严重阻碍中国民族资本主义发展的条款是（  ）

句型转换

（1）Her father can play basketball and table tennis. (改为否定句)

Her father ____  ____ basketball ____ table tennis.

（2）Lucy can dance well. Can you dance well? (改为同义句)

Lucy can dance well. ____  ____you?

（3） Don't be worried about me. (改为同义句)

Don't ____  ____ me.

（4）Mike can play basketball well. (改为一般疑问句并作肯定回答)

—____ Mike ____ basketball well?

—____, he____.

（5）I want to join the Dance Club. (改为同义句)

I ____  ____  ____ join the Dance Club.

已知（x+a）（x²﹣x+c）的积中不含x²项和x项，求（x+a）（x²﹣x+c）的值是多少？​