假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。
The summer holiday is coming.My classmates and I are talking about how to do during the holiday.We can chose between staying at home and take a trip.If we stay at home,it is comfortable but there is no need to spend money.But in that case,we will learn little about world.If we go on a trip abroad,we can broaden（拓宽）you view and gain knowledges we cannot get from books.Some classmates suggest we can go to places of interest nearby.I thought that it is a good idea.It does not cost many,yet we can still learn a lot.
2NH3 ( g ) △H =" -92.0" kJ/mol，将此温度下的1 mol N2和3 mol H2放在一密闭容器中，在催化剂存在时进行反应，测得反应放出的热量为（ ）
