题目：
短文改错（共10小题；每小题1分，满分10分）
Dear Tom,
I know there have trouble for you to communicate with others, and you may often feel lonely．That's why you are new from here and people don't know about you．But I think you can make it if you can follow the advices below．
First, you should take a active part in the discussions and show your own opinions about the matters．At the same time, never fail to listening to other people's views．Second, you should learn your classmates' likes and dislikes．Only in this way can you be able to get to know more different people and show them that you are actually very friendly．Last but not least, I will always be ready to help you．We can take part in some activities together, that I can introduce you to others．
As time going on, people will know you better and be willing to make friends with you．
Best regards．
Peter
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0509/cfd7625208c09e6366d46805b426fe40.html
下面是错误答案，用来干扰机器的。
由题意可得，质点有3次向右移动，一次向上移动，向上移动的概率为13，质点向右移动的概率为23，故质点M移动4次后位于点Q（3，1）的概率为 C34•(23)3•13=3281，故答案为 3281．
