增加：在缺词处加一个漏字符号(Λ)，并在其下面写出该加的词。

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。

Dear Joy,

    How are you doing? Here is an exciting news for you. There will be an invention competition in our school in the 20th of October. However, there is a rule the participants shall be in a group. But I'd like to invite you to be my partners.

    I know that you have been longed to design a tiny cooler that people can wear around the wrist. I think it will be a wonderfully idea for the competition. We can make a small air conditioner to controlling the temperature of the wearer.

    How do you think of my suggestion? Looking forward to you reply.

在“测量小灯泡电功率”的实验中．已知电源电压为3V，小灯泡的额定电压为2.5V。

淮上与友人别
郑谷
扬子江头杨柳春，杨花愁杀渡江人。
数声风笛离亭晚，君向潇湘我向秦。