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.下列方程中，是二元一次方程的有（）个①
②
③
④
⑤
⑥
② ③ ④ ⑤ ⑥ | A: 1 |
| B: 2 |
| C: 3 |
| D: 4 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWPquWQq+aciTLkuKrmnKrnn6XmlbDvvIzmnKrnn6XmlbDnmoTpobnnmoTmnIDpq5jmrKHpobnnmoTmrKHmlbDmmK8x77yM5Li65pW05byP5pa556iL
- 提示2：IOKRoeS4jeaYr+aVtOW8j+aWueeoi++8jOKRouKRo+KRpeacquefpeaVsOeahOmhueeahOacgOmrmOasoemhueeahOasoeaVsOaYrzI=
- 答案：Qg==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.下列四个方程组中，是二元一次方程组的有（ ）个. （1） 
;（2）
；（3）
；（4）
;（2）；（3）；（4） | A: 4 |
| B: 3 |
| C: 2 |
| D: 1 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruS6jOWFg+S4gOasoeaWueeoi+e7hOeahOWumuS5ie+8mw==
- 提示2：IOaKiuWFt+acieebuOWQjOacquefpeaVsOeahOS4pOS4quS6jOWFg+S4gOasoeaWueeoi+WQiOWcqOS4gOi1t++8jOWwsee7hOaIkOS6huS4gOS4quS6jOWFg+S4gOasoeaWueeoi+e7hO+8mw==
- 提示3：IOS6jOWFg+S4gOasoeaWueeoi+e7hOa7oei2s+eahOadoeS7tuKRoOaWueeoi+e7hOS4reeahOS4pOS4quaWueeoi+mDveaYr+aVtOW8j+aWueeoiy4gPGJyPg0K4pGh5pa556iL57uE5Lit5YWx5ZCr5pyJ5Lik5Liq5pyq55+l5pWwLiA8YnI+DQrikaLmr4/kuKrmlrnnqIvpg73mmK/kuIDmrKHmlrnnqIsu
- 答案：RA==
PGRpdj7op6PvvJrvvIgx77yJ5piv5LqM5YWD5LqM5qyh5pa556iL57uE77ybPGJyPu+8iDLvvInmmK/kuozlhYPkuozmrKHmlrnnqIvnu4TvvJs8L2Rpdj48ZGl2Pu+8iDPvvIk8aW1nIHdpZHRoPTkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNUIvckJBQ0UxTU1XYnV5b1EwM0FBQUJObncyQXBRMDk2LnBuZyI+5piv5YiG5byP77yM5LiN5piv5LqM5YWD5LiA5qyh5pa556iL57uE77ybPGJyPu+8iDTvvInmmK/kuozlhYPkuIDmrKHmlrnnqIvnu4TvvJs8YnI+5pWF6YCJ77yaRC4gPC9kaXY+
本课配套习题挑战模式3/5
单选题
难度系数：
3.方程
有（ ）个正整数解
有（ ）个正整数解 | A: 1 |
| B: 2 |
| C: 3 |
| D: 无数 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOaKiuaWueeoi+WPmOW9ouaIkDxpbWcgd2lkdGg9NzYgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNkMvckJBQ0ZGTU1XYjZCRUNGTEFBQUIzSDlCQnJzMDAyLnBuZyI+77yM54S25ZCO57uZPGltZyB3aWR0aD05IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzIzLzVCL3JCQUNFMU1NV2I3enVIRzBBQUFCR2szNDVOVTQxNC5wbmciPuato+aVtOaVsOWAvO+8jOi/m+iAjOehruWumjxpbWcgd2lkdGg9OSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy81Qi9yQkFDRTFNTVdiNkM4ZXdLQUFBQkxCVWhCOE01MTUucG5nIj7nmoTlgLw=
- 提示2：IOW9kzxpbWcgd2lkdGg9MTAwIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzAwLzZDL3JCQUNGRk1NV2I2UnNHdFhBQUFDVVZ4UEhBMDAzMS5wbmciPjDvvIzmiYDku6UgPGltZyB3aWR0aD04MyBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMC82Qy9yQkFDRkZNTVdiN3pLcllYQUFBQnQxTm12N1UxNzQucG5nIj4=
- 答案：Qg==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.若
是关于
的二元一次方程，且
，则
的值是（）
是关于的二元一次方程，且，则的值是（） A:  |
| B: 2 |
| C: 4 |
D: |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruS6jOWFg+S4gOasoeaWueeoi+eahOWumuS5ieehruWumuasoeaVsO+8mw==
- 提示2：IOS7juS6jOWFg+S4gOasoeaWueeoi+eahOacquefpeaVsOasoeaVsOS4ujHov5nkuIDmlrnpnaLogIPomZHvvIzlhYjmsYLlh7rluLjmlbBt44CBbueahOWAvA==
- 提示3：IOagueaNrm0sbuiuoeeul+e7k+aenA==
- 答案：QQ==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.若
为整数，则使得方程
的解也是整数的的值有（） 个
为整数，则使得方程的解也是整数的的值有（） 个 | A: 4 |
| B: 8 |
| C: 12 |
| D: 16 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWOn+aWueeoi+WPmOW9ouW+lzxpbWcgd2lkdGg9NjYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNkMvckJBQ0ZGTU1XY0hoTERIWkFBQUNMMklZSnNRMzcwLnBuZyI+
- 提示2：IDIwMDHnmoTlm6DmlbDmnInvvJox77yMM++8jDIz77yMMjnvvIw2Oe+8jDg377yMNjY377yMMjAwMe+8jC0x77yMLTPvvIwtMjPvvIwtMjnvvIwtNjnvvIwtODfvvIwtNjY377yMLTIwMDHlhbExNuS4qg==
- 答案：RA==
PGRpdj7op6PvvJrljp/mlrnnqIvlj5jlvaLlvpfvvJo8aW1nIHdpZHRoPTE4MCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy81Qi9yQkFDRTFNTVdjR2lGcG1ZQUFBQ3ZnU0NlX3czNjAucG5nIj7vvIw8YnI+4oi0PGltZyB3aWR0aD02NiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMC82Qy9yQkFDRkZNTVdjSGhMREhaQUFBQ0wySVlKc1EzNzAucG5nIj48L2Rpdj48ZGl2PuKItWvkuLrmlbTmlbDvvIw8YnI+4oi0PGltZyB3aWR0aD0zMSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy81Qi9yQkFDRTFNTVdjR2lJdFJ5QUFBQllUTTByTXMzMDQucG5nIj7nmoTlm6DmlbDmnInvvJo8aW1nIHdpZHRoPTU1NCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMC82Qy9yQkFDRkZNTVdjSFFNSVJiQUFBRnNWdzdvVFUxMzUucG5nIj48YnI+4oi05YWx5pyJMTbkuKouIDxicj7mlYXpgIlELiA8L2Rpdj4=
