短文改错（共10题，每小题1分；满分10分）

下面短文中有十种语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并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，并在该词下面写上修改后的词。

注意：1.每处错误及其修改仅限一词；

2.只允许修改10处,多者(从第11处起)不计分。

I live in a very old town which is surrounding by beautiful woods. It is a famous beauty spot. In Sundays, hundreds of people come from the city to see our town and to walk through the woods. Visitors have asked to keep the woods clean and tidy. Litter baskets have been placed under the trees, and people still throw their rubbish everywhere. Last Wednesday, I go for a walk in the woods. That I saw made me very sad. I counted seven old cars and three old refrigerators. The

litter basket were empty and the ground was covered with pieces of paper, cigarette ends, old tyres, empty bottles or rusty tins. Among the rubbish, I found a sign which was said, “Anyone who leave litter in these woods will be punished!”

裸导体的导线接头长期允许工作温度一般不超过（）。

A、60℃

B、70℃

C、80℃

D、90℃