本课配套习题挑战模式1/5
单选题
难度系数:
1.下列不等式中,是一元一次不等式的有( )个.
①x>-3;②xy≥1;③x2<3;④≤1;⑤>1.
①x>-3;②xy≥1;③x2<3;④≤1;⑤>1.
A: 1 |
B: 2 |
C: 3 |
D: 4 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5LiA5YWD5LiA5qyh5LiN562J5byP55qE5a6a5LmJ77yM5Y+q6KaB5ZCr5pyJ5LiA5Liq5pyq55+l5pWw77yM5bm25LiU5pyq55+l5pWw55qE5qyh5pWw5pivMeeahOS4jeetieW8j+WwseaYr+S4gOWFg+S4gOasoeS4jeetieW8j++8jg==
- 答案:Qg==
6Kej77ya5piv4pGg4pGj5YWxMuS4qu+8jjxicj7mlYXpgIlC77yO
本课配套习题挑战模式2/5
单选题
难度系数:
2.不等式3x+2>-1的解集是( )
A: x> |
B: x< |
C: x>-1 |
D: x<-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWI56e76aG577yM5YaN5ZCI5bm25ZCM57G76aG577yM5oqKeOeahOezu+aVsOWMluS4ujHljbPlj6/vvI4=
- 答案:Qw==
6Kej77ya56e76aG55b6X77yMM3jvvJ4tMS0y77yMPGJyPuWQiOW5tuWQjOexu+mhueW+l++8jDN477yeLTPvvIw8YnI+5oqKeOeahOezu+aVsOWMluS4ujHlvpfvvIx477yeLTHvvI48YnI+5pWF6YCJ77yaQ++8jg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.不等式-3x+6>9的正整数解有( )
A: 0个 |
B: 1个 |
C: 2个 |
D: 无数多个 |
一次做对,真牛!
+5奖励规则>
- 提示1:6aaW5YWI5Yip55So5LiN562J5byP55qE5Z+65pys5oCn6LSo6Kej5LiN562J5byP77yM5YaN5LuO5LiN562J5byP55qE6Kej6ZuG5Lit5om+5Ye66YCC5ZCI5p2h5Lu255qE5q2j5pW05pWw5Y2z5Y+v
- 答案:QQ==
6Kej77ya5LiN562J5byP55qE6Kej6ZuG5piveO+8nC0x77yMPGJyPuS4jeetieW8jy0zeCs277yeOeeahOato+aVtOaVsOino+aciTDkuKrvvI48YnI+5pWF6YCJQe+8jg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.关于x的一元一次方程4x-m+1=3x-1的解是负数,则m的取值范围是( )
A: m=2 |
B: m>2 |
C: m<2 |
D: m≤2 |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWI5rGC5Ye65pa556iL55qE6Kej77yM54S25ZCO5qC55o2u6Kej5Li66LSf5pWw77yM5YiX5LiN562J5byP5rGC6Kej77yO
- 答案:Qw==
6Kej77ya6Kej5pa556iL5b6X77yaeD1tLTLvvIw8YnI+4oi15pa556iL55qE6Kej5Li66LSf5pWw77yMPGJyPuKItG0tMu+8nDDvvIw8YnI+6Kej5b6X77yabe+8nDLvvI48YnI+5pWF6YCJQ++8jg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.已知不等式3x-a≤0的正整数解恰是1,2,3,4,那么a的取值范围是( )
A: a>12 |
B: 12≤a≤15 |
C: 12<a≤15 |
D: 12≤a<15 |
一次做对,真牛!
+5奖励规则>
- 提示1:6aaW5YWI56Gu5a6a5LiN562J5byP57uE55qE6Kej6ZuG77yM5Yip55So5ZCrYeeahOW8j+WtkOihqOekug==
- 提示2:5YaN5qC55o2u5pW05pWw6Kej55qE5Liq5pWw5bCx5Y+v5Lul56Gu5a6a5pyJ5ZOq5Lqb5pW05pWw6Kej
- 提示3:54S25ZCO5qC55o2u6Kej55qE5oOF5Ya15Y+v5Lul5b6X5Yiw5YWz5LqOYeeahOS4jeetieW8j++8jOS7juiAjOaxguWHumHnmoTojIPlm7TvvI4=
- 答案:RA==
6Kej77ya5LiN562J5byP55qE6Kej6ZuG5piv77yaeOKJpDxpbWcgd2lkdGg9NyBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9DNy9BQy9yQkFDRTFXYm1iU2p4WHM0QUFBQlBaUnRHd2swNjUucG5nIj7vvIw8YnI+4oi15LiN562J5byP55qE5q2j5pW05pWw6Kej5oGw5pivMe+8jDLvvIwz77yMNO+8jDxicj7iiLQ04omkPGltZyB3aWR0aD03IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0M3L0FDL3JCQUNFMVdibWJTanhYczRBQUFCUFpSdEd3azA2NS5wbmciPu+8nDXvvIw8YnI+4oi0YeeahOWPluWAvOiMg+WbtOaYrzEy4omkYe+8nDE177yOPGJyPuaVhemAiUTvvI4=