题目

 --What about going boating this afternoon? --It sounds great. ________. A. Either take the lead or fall behind. B. I can’t agree with you more. C. You can’t be too careful. D. It’s better to be safe than sorry. 答案：B一条红领巾的底长1米，高0.33米，做200条红领巾，需要红布多少平方米？