用一根长24厘米的铁丝围成等腰三角形或等边三角形（边长是整厘米数），你有几种围法，试着列举出来．
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24÷3=8（厘米），
则等腰三角形可以是以下几种：
7厘米，7厘米，10厘米；
9厘米，9厘米，6厘米；
10厘米，10厘米，4厘米…；
故答案为：
| 一条边长 | 7厘米 | 8厘米 | 9厘米 | 10厘米 |
| 另一条边长 | 7厘米 | 8厘米 | 9厘米 | 10厘米 |
| 第三条边长 | 10厘米 | 8厘米 | 6厘米 | 4厘米 |
| 单句改错 | |
| 1. The student I want to see is the one whom studies hardest. 2. May I use the pen that you bought it yesterday? 3. The students who was often praised by the teacher went to college last summer. 4. The hotel where we stayed in was both cheap and comfortable. 5. They talked of things and people who they remembered in the hospital. | __________ __________ __________ __________ __________ |