球阀是近十几年来发展最快的阀门品种之一，其特点有（）。

A.适用于溶剂、酸等介质 

B.适用于天然气等介质 

C.适用于氧气、过氧化氢等工作条件恶劣的介质 

D.不适用于含纤维、微小固体颗粒等介质 

短文改错。

     下面短文中有10处语法错误。请在有错误的地方增加、删除或修改某个单词。

     增加：在缺词处加上一个漏字符号（∧），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）不记分。

Tom,

     I'd like to tell you something more about our school sports meet. It was holding on Oct. 6, which was

a fine day. There were over 1,000 students and teachers attend it. Wang Lin, a student from my class won

the 100-meters race. He finish the race in 12.6 seconds and broke in the school record. The sports meet

was really success. That was because we were all trying to do my best. Although I was not one of the winner,

I was proud of that we had cone. I'm looking forward to receiving your letter.

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