短文改错（共10小题；每小题1分，满分10分）

英语课上,老师要求同桌同学相互修改作文。假设以下小作文为你同桌所写，请你对其进行修改。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：在缺词处加一个漏词符号（^），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。

3．必须按答题要求做题，否则不给分。

I just come back from Britain last week. I was luckily enough to be one of the student from different countries to visit the UK from Feb.16 to 28. We paid a visit to many places, like London, Oxford or the Lake District. I learned much about British culture and history in London, where was my favorite. I also liked Oxford, in which I saw much more old buildings. The Lake District was beautiful, but it was pity that it rained heavily when they were there. The most excited thing for me in the Britain was that I made a lot of friends there.

隔爆开关的电源、负荷引入装置能否颠倒使用？