It's about _______ from our school to my home.
A:twenty minutes' walk
B:twenty minute's walk
C:twenty minutes' walks
D:twenty-minute-walk
把肯定句改成否定句
①他答应了我们的请求。
②孩子们都喜欢他。
国家税务总局要求强化税收征管,严厉打击偷税、骗税行为,确保税收增长预期目标的实现。这体现了税收的( )
(1+1.2)+(2+1.2×2)+(3+1.2×3)+…+(99+1.2×99)+(100+1.2×100)