一辆汽车在高速公路上行驶，由于遇到紧急情况而刹车，以速度$v\left(t\right)=7-3t+\frac{25}{1+t}$ （t的单位：s，v的单位：m/s）行驶至停止。在此期间汽车继续行驶的距离（单位：m）是（   ）

    Doctors tell us that holidays are important. we should have a 1from work for a week or two weeks every year. If it is possible,we should 2our homes and go to another 3of the country. We should go away for 4Then, after the holidays, we will be 5and get ready for 6again.

    But some people do not want to leave their homes to 7in other places. They do not like a sudden change in their lives. They think their 8are best of all. And some people can have a rest in  9way. They can go to visit their friends. They can have a 10holiday together.

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Chen Jie: Which season do you like best, Mike?

Mike: I like summer best.

Chen Jie: Why do you like summer?

Mike: Because I can eat ice-cream and swim in the lake.

Chen Jie: I don't like summer. It's too hot.

Zhang Peng: What's your favourite season?

Chen Jie: Spring. It's sunny and warm. I can plant trees and fly kites. How about you, Zhang Peng?

Zhang Peng: My favourite season is winter.

Mike: Why do you like it?

Zhang Peng: Because I can skate and make a snowman. I like snow.