中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.一个三角形的周长是个偶数，其中的两边长为5和2008，则满足条件的三角形有（ ）个
| A: 4 |
| B: 5 |
| C: 6 |
| D: 7 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruS4ieinkuW9oueahOS4iei+ueWFs+ezu++8jOaxguW+l+esrOS4iei+ueebuOW6lOiMg+WbtO+8jOWGjeiAg+iZkeWRqOmVv+aYr+WBtuaVsOW+l+WIsOespuWQiOmimOaEj+eahOS4ieinkuW9og==
- 答案：QQ==
6Kej77ya6K6+56ys5LiJ6L655piveO+8jOWImTIwMDPvvJx477ycMjAxMy4gPGJyPuKItHg9MjAwNOaIljIwMDXmiJYyMDA25oiWMjAwN+aIljIwMDjmiJYyMDA55oiWMjAxMOaIljIwMTHmiJYyMDEyLiA8YnI+6ICM5LiJ6KeS5b2i55qE5ZGo6ZW/5piv5YG25pWw77yMPGJyPuWboOiAjHg9MjAwNeaIljIwMDfmiJYyMDA55oiWMjAxMe+8jDxicj7mu6HotrPmnaHku7bnmoTkuInop5LlvaLlhbHmnIk05Liq
本课配套习题挑战模式2/5
单选题
难度系数：
2.周长为24，各边长互不相等且都是整数的三角形共有（ ）个
| A: 7 |
| B: 8 |
| C: 9 |
| D: 10 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOiuvuS4ieinkuW9ouS4iei+ueS4umHjgIFi44CBY++8jOS4lGHvvJxi77ycY++8jOeUseS4ieinkuW9ouS4iei+ueWFs+ezu+WPr+ehruWumuacgOmVv+i+uWPnmoTlj5blgLzojIPlm7Q=
- 提示2：IOeEtuWQjueUqOaemuS4vuazleWIl+WHuuaJgOacieWPr+iDvQ==
- 答案：QQ==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.周长为30，各边长互不相等且都是整数的三角形共有（）个？
| A: 10 |
| B: 11 |
| C: 12 |
| D: 13 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOiuvuS4ieinkuW9ouS4iei+ueS4umHjgIFi44CBY++8jOS4lGHvvJxi77ycY++8jOeUseS4ieinkuW9ouS4iei+ueWFs+ezu+WPr+ehruWumuacgOmVv+i+uWPnmoTlj5blgLzojIPlm7Q=
- 提示2：IOeEtuWQjueUqOaemuS4vuazleWIl+WHuuaJgOacieWPr+iDvQ==
- 答案：Qw==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.设不等边三角形的各边之长都是整数，周长小于13，那么这种三角形的个数共有（ ）个
| A: 2 |
| B: 3 |
| C: 4 |
| D: 5 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeUseS4ieinkuW9oueahOS4iei+ueWFs+ezu+WPr+W+l++8jOS4ieinkuW9oueahOS4iei+uemDveS4jeiDveWkp+S6jjXvvIznhLblkI7nlKjmnprkuL7ms5XliJflh7rmiYDmnInlj6/og70=
- 答案：Qg==
6Kej77ya5LiJ6KeS5b2i55qE5ZGo6ZW/5bCP5LqOMTPvvIzkuJTkuI3nrYnovrnkuInop5LlvaLnmoTlkITovrnkuYvplb/pg73mmK/mlbTmlbA8YnI+5YiZ5YW25Lit55qE5Lu75L2V5LiA6L655LiN6IO96LaF6L+HNTxicj7liJnov5nmoLfnmoTkuInop5LlvaLlhbHmnIkz77yMNO+8jDLvvJs077yMNe+8jDLvvJsz77yMNO+8jDXkuInkuKo=
本课配套习题挑战模式5/5
单选题
难度系数：
5.周长不超过10，各边长是整数且互不重合的三角形共有（ ）个
| A: 9 |
| B: 10 |
| C: 11 |
| D: 12 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruS4ieinkuW9oueahOS7u+aEj+S4pOi+ueS5i+WSjOWkp+S6juesrOS4iei+ueS7peWPiuS4ieinkuW9oueahOWRqOmVv++8jOWIqeeUqOept+S4vuazleWIl+S4vuWHuuaJgOacieeahOWPr+iDveeahOS4ieinkuW9og==
- 答案：Qw==
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