假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号(/\)，在其下面写上该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，在该词下面写上修改后的词。

注意：1．每处错误及其修改均仅限一词；

Recently I read an article in a magazine．It was about a mother who was worried about his son just because of he always kept his hair long．The mother thought that was not right，and the son felt there was nothing unusually about it．Different generations have different opinions on the same thing．That is what is meaning by“the generation gap”．We can see them in our daily lives．Most of our parents like listening to old songs when young people prefer pop songs．Every time my father finds me listen to rock music，he always shouted，“Shut it off．It’s awful!”How can we deal the generation gap?

下列哪种情况中。心电图上看不到OT延长的现象（）

A.左心肥厚

B.心肌梗死

C.低血钾症

D.服洋地黄制剂

E.服奎尼丁制剂