题目

下列实验操作错误的是（） A . 点燃酒精灯 B . 检查装置气密性 C . 倾倒液体 D . 加热液体 答案：A综合填空grow running against achieve decide on how much inLiu Yu, a fifteen-year-old boy from Shandong, is a 【1】________ star. He is【2】___ his school team and has always wanted to be a professional runner when he【3】_______up. However, his parents won’t allow him to train so much. “Of course we want to see him【4】 ______ his dreams,” says Mr. Liu. “And we know【5】____ he loves running. My wife and I have supported every one of his races. We have nothing 【6】_____running! But we think our son needs to think about other possible jobs. He’s getting older now, so he needs to think about what will happen if he doesn’t end up as a professional runner.”