中学生网络课堂本课配套习题挑战模式1/5
不等式2x＜6的非负整数解为（ ）
| A: 0，1，2 |
| B: 1，2 |
| C: 0，-1，-2 |
| D: 无数个 |
- 提示1：PHA+6aaW5YWI5Yip55So5LiN562J5byP55qE5Z+65pys5oCn6LSo6Kej5LiN562J5byP77yMPC9wPg==
- 提示2：PHA+5YaN5LuO5LiN562J5byP55qE6Kej6ZuG5Lit5om+5Ye66YCC5ZCI5p2h5Lu255qE6Z2e6LSf5pW05pWw5Y2z5Y+vLjwvcD4=
- 答案：QQ==
PGRpdj7op6PnrZTvvJrkuI3nrYnlvI8yeO+8nDbnmoTop6Ppm4bmmK9477ycM++8jDxicj7lm6DogIzkuI3nrYnlvI/nmoTpnZ7otJ/mlbTmlbDop6PmmK8w77yMMe+8jDIuPGJyPuaVhemAiUEuPC9kaXY+
本课配套习题挑战模式2/5
不等式2x-7＜5-2x正整数解有（ ）
| A: 1个 |
| B: 2个 |
| C: 3个 |
| D: 4个 |
- 提示1：PHA+5YWI5rGC5Ye65LiN562J5byP55qE6Kej6ZuG77yM5Zyo5Y+W5YC86IyD5Zu05YaF5Y+v5Lul5om+5Yiw5q2j5pW05pWw6KejLjwvcD4=
- 答案：Qg==
PGRpdj7op6PvvJrkuI3nrYnlvI8yeC0377ycNS0yeOeahOino+mbhuS4unjvvJwz77yMPGJyPuato+aVtOaVsOino+S4ujHvvIwy77yM5YWx5Lik5LiqLjxicj7mlYXpgIlCLjwvZGl2Pg==
本课配套习题挑战模式3/5
不等式2（x+2）-5＜10-x的非负整数解是（ ）
| A: 1，2，3，4 |
| B: 1，2，3 |
| C: 0，1，2，3 |
| D: 0，1，2，3，4 |
- 提示1：PHA+6aaW5YWI5Yip55So5LiN562J5byP55qE5Z+65pys5oCn6LSo6Kej5LiN562J5byPPC9wPg==
- 提示2：PHA+5YaN5LuO5LiN562J5byP55qE6Kej6ZuG5Lit5om+5Ye66YCC5ZCI5p2h5Lu255qE6Z2e6LSf5pW05pWw5Y2z5Y+vLjwvcD4=
- 答案：Qw==
PGRpdj7op6PnrZTvvJrkuI3nrYnlvI/nmoTop6Ppm4bmmK9477ycPGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzIzLzY3L3JCQUNFMU1NWGREeEhqZmdBQUFCTDBYems4UTYzOC5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNjcvckJBQ0UxTU1YZER4SGpmZ0FBQUJMMFh6azhRNjM4LnBuZyIgaGVpZ2h0PSI0MiIgd2lkdGg9IjEyIj48L2Rpdj48ZGl2PuaVheS4jeetieW8jzLvvIh4KzLvvIktNe+8nDEwLXjnmoTpnZ7otJ/mlbTmlbDop6PkuLow77yMMe+8jDLvvIwzLjxicj7mlYXpgIlDLjwvZGl2Pg==
本课配套习题挑战模式4/5
| A: 4＜a＜5 |
| B: 4≤a＜5 |
| C: 4＜a≤5 |
| D: 4≤a≤5 |
- 提示1：IOmmluWFiOehruWumuS4jeetieW8j+eahOato+aVtOaVsOino++8jOWImWHnmoTojIPlm7TljbPlj6/msYLlvpcu
- 答案：Qw==
PGRpdj7lhbPkuo5455qE5LiN562J5byPeO+8nGHlj6rmnIk05Liq5q2j5pW05pWw6Kej77yMPGJyPuWImeato+aVtOaVsOino+aYr++8mjHvvIwy77yMM++8jDQuIDxicj7liJlh55qE5Y+W5YC86IyD5Zu077yaNO+8nGHiiaQ1LiA8YnI+5pWF6YCJQy4gPC9kaXY+
本课配套习题挑战模式5/5
若不等式3x-a≤0的正整数解是1、2、3. 则a的取值范围为（ ）
| A: a＜12 |
| B: a≥9 |
| C: 9≤a≤12 |
| D: 9≤a＜12 |
- 提示1：PHA+5rGC5Ye65LiN562J5byP55qE6Kej6ZuG77yM5qC55o2u5bey55+l5b6X5Ye65LiN562J5byPPGJyPjwvcD48cD48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjkvNjUvckJBQ0UxTVFWTl9Rb3FJSkFBQUNjQzMzNGkwODQ3LnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yOS82NS9yQkFDRTFNUVZOX1FvcUlKQUFBQ2NDMzM0aTA4NDcucG5nIiBhbHQ9IiIgc3R5bGU9IndpZHRoOiA4MXB4OyBoZWlnaHQ6IDQ5cHg7Ij48YnI+PC9wPjxwPuaxguWHuuS4jeetieW8j+e7hOeahOino+mbhuWNs+WPrzxicj48L3A+
- 答案：RA==
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
