分式方程$\frac{2}{x-1}=\frac{3}{x}$的解为（　　）

It sounds _______ to use“Could you . . . ”than “Can you. . . ”.

经过科学工作者的不懈努力，2015年9月20日，我国新型运载火箭长征六号首飞成功，将20颗微小卫星送入太空，创造了中国航天一箭多星发射的新纪录。这说明（   ）

①人可以认识和利用规律②运动是物质的唯一特性和存在方式③发挥主观能动性可以超越客观条件的制约④发挥主观能动性是人们实践活动取得成功的重要因素

阅读短文，判断句子正（正确）误（错误）。

    Tom is my classmate. He is from London in England. But he likes China very much. Now he is in Beijing. He is a little fat. He has a round face and big blue eyes. His hair is not black but yellow. His nose, mouth and ears are big. He likes blue. He likes wearing a blue T-shirt and blue jeans. Look at his hand. He has a football in it. We often play football after class.