化简：2x﹣（5a﹣7x﹣2a）=（）。_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

化简：2x﹣（5a﹣7x﹣2a）=（）。

答案

9x﹣3a

完形填空

Kevin is a boy who might be described as “slow”. He didn’t learn his ABCs as fast as other kids. But Kevin was__1__with people, for his bright smile and big heart won him plenty of friends.
My friend Randy decided they needed a__2__team for boys.Kevin__3__up and practiced hard. But he simply shot baskets. Or more correctly, he threw the ball at the basket. He had a __4__spot near the free throw line(罚球线). He threw and threw, and it __5__went in.
The team did well but they never won a game that season except the night when it snowed and the opposing team never__6__. At the end of the__7__lot(签)of playing against the best team.
Game day arrived. The game went as__8__.Near the end of the last quarter, Kevin’s team stood nearly 30 points behind. It was then that one of the boys called timeout. ”Coach Randy, ” he said, ”this is our__9__game and Kevin has never made a basket. I think we should let him make a basket.”
The team agreed. Kevin wan __10__to stand at his special place near the free throw line and wait. When the ball was__11__to him, he shot and missed. A moment later, Kevin got the ball again, but shot and missed again.
Slowly the other team seemed to__12__what was going on. Both teams circled the boy by their time and all the other players were shouting, “Kevin! Kevi

n!” Soon everyone in the __13__　joined in.
Kevin attempted again and again, and one of his shots took a crazy bounce on the basket. Everyone held their__14__.The ball dropped in. Nobody remained __15__. Everyone stood and cheered as if one boy had won a world champion.
That day, an undefeated team kept their perfect record. But everybody won because everybody had

participated in a crazy conspiracy(密谋) of kindness.

A．basketball　

B．automatically

D．occasionally

C．started off

C．unfortunate

B．bring about

填空题

运行以下程序的结果是321。 main() {int x； x=3； do {printf("%d"，x--)； }while(!x)；} 错误：______ 改正：______