题目

根据短文内容，从方框中选择恰当的单词，并用其选项号填空 A. knowB. radio C. butD. modelE. always F. theirG. thinkH. tidyI. watchJ. everywhereK. under L. baseball Hello, I'mRichard. I have two sisters, Susan and Winnie. These arerooms. Susan's room is always tidy,Winnie's is not. In Susan's room, herbooks are in the bookcase. Her quilt and jacket areon the bed. Look! This is her desk. Youcan find a clock and aonit. Susan's English is good. She likes listening to（听）English radio inthe morning. And threeplanesare on it, too. Are they Susan's? No, Ith下列各数中，是无理数的（　　）A. π B. 0 C. D. ﹣ A 【解析】A选项中，π是无理数，故此选项正确； B选项中，0是有理数，故此选项错误； C选项中， =2，是有理数，故此选项错误； D选项中， 是有理数，故此选项错误； 故选A.