问题
填空题
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答案
，3.33…，7 22
，-π 2
，±2 2
，0.454455444555…，8
，-3 1 27
，中0.09
根据无理数的定义可得，无理数有
，-π 2
，±2 2
，0.454455444555…．8
故无理数的个数是4个．
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|
，3.33…，7 22
，-π 2
，±2 2
，0.454455444555…，8
，-3 1 27
，中0.09
根据无理数的定义可得，无理数有
，-π 2
，±2 2
，0.454455444555…．8
故无理数的个数是4个．
| 完形填空。 | ||||
| I'm a boy from a poor (贫穷的) family. I 1 . in a very small school. There is only one 2 . in our school. We study in this house. There are many 3 . in our school. We are from eight years old 4 . twelve years old. We also 5 . only one teacher. She is 6 . and slim. Every day she teaches(教) 7 . to read and write. She is funny. We all 8 . her very much. Our school begins at 7:00a.m. From Monday to Friday, all of us 9 . to school. We love 10 . football with Miss Wang after class. | ||||
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