A sign is another kind of language. Here are some of them th
1个回答

小题1:C

小题2:D

小题3:A

本文讲述的是许多在公路上的标牌。

小题1:根据文章中的内容“Number One is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour”可知答案为C

小题2:根据文章的描述,可知答案为D

小题3:根据常识可知答案为A