问题
问答题 简答题
计算题：有一环形钢板，外径为1cm，内径为1cm，试求其面积（精确到两位小数）。
答案
参考答案：
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计算题：有一环形钢板，外径为1cm，内径为1cm，试求其面积（精确到两位小数）。
参考答案：
| 选择方框内的句子补全对话。 A: Shall we play football together? B: 1 A: Why not? B: Because I have to go home to feed animals. A: 2 B: We have three sheep.two cows and some chickens . A: 3 B: Because my brother did it yesterdy.It's my turn to do it today. A: OK.I see.Will you be free tomorrow afternoon? B: 4 What's the matter? A: Let's play football together then . B: OK.That'sgreat.Let's meet at school. A: 5 | |
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won't