本课配套习题挑战模式1/5
单选题
难度系数:
1.若a>b,则下列式子正确的是( )
A: -4a>-4b |
B: |
C: 4-a>4-b |
D: a-4>b-4 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5LiN562J5byP55qE5oCn6LSo77yI4pGg5LiN562J5byP55qE5Lik6L656YO95Yqg5LiK5oiW5YeP5Y675ZCM5LiA5Liq5pWw5oiW5pW05byP77yM5LiN562J5Y+355qE5pa55ZCR5LiN5Y+Y77yM4pGh5LiN562J5byP55qE5Lik6L656YO95LmY5Lul5oiW6Zmk5Lul5ZCM5LiA5Liq5q2j5pWw77yM5LiN562J5Y+355qE5pa55ZCR5LiN5Y+Y77yM4pGi5LiN562J5byP55qE5Lik6L656YO95LmY5Lul5oiW6Zmk5Lul5ZCM5LiA5Liq6LSf5pWw77yM5LiN562J5Y+355qE5pa55ZCR5pS55Y+Y77yJ6YCQ5Liq5Yik5pat5Y2z5Y+v77yO
- 答案:RA==
6Kej77yaQeOAgeKItWHvvJ5i77yM4oi0LTRh77ycLTRi77yM5pWF5pys6YCJ6aG56ZSZ6K+v77ybPGJyPkLjgIHiiLVh77yeYu+8jOKItDxpbWcgd2lkdGg9NDggaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOTEvQjMvckJBQ0psV2JtVmV3dE16T0FBQUI1X3FOZHBZNjU1LnBuZyI+PGJyPu+8jOaVheacrOmAiemhuemUmeivr++8mzxicj5D44CB4oi1Ye+8nmLvvIw8YnI+4oi0LWHvvJwtYu+8jDxicj7iiLQ0LWHvvJw0LWLvvIzmlYXmnKzpgInpobnplJnor6/vvJs8YnI+ROOAgeKItWHvvJ5i77yM4oi0YS0077yeYi0077yM5pWF5pys6YCJ6aG55q2j56Gu77ybPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式2/5
单选题
难度系数:
2.如果关于x的不等式(a-1)x>a-1的解集为x<1,那么a的取值范围是( )
A: a≤1 |
B: a≥1 |
C: a<1 |
D: a<0 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5LiN562J5byP55qE6Kej6ZuG55qE56Gu5a6a5pa55rOV77yM5bCx5Y+v5Lul5b6X5Ye6YeeahOiMg+WbtO+8jg==
- 答案:Qw==
6Kej77ya55Sx5LqO5LiN562J5byP77yIYS0x77yJeO+8nmEtMeeahOino+mbhuS4unjvvJwx77yMPGJyPuWPr+efpeS4jeetieWPt+eahOaWueWQkeWPkeeUn+S6huaUueWPmO+8mnjvvJw8aW1nIHdpZHRoPTIyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM4LzA2L3JCQUNGRldibVdQZ2ozam1BQUFCU3doREh6azcxNC5wbmciPu+8jDxicj7lj6/liKTmlq3lh7phLTHvvJww77yMPGJyPuaJgOS7pWHvvJwx77yOPGJyPuaVhemAiUPvvI4=
本课配套习题挑战模式3/5
单选题
难度系数:
3.不等式2(x-1)≥3x+4的解集是( )
A: x<-6 |
B: x≤-6 |
C: x>-6 |
D: x≥-6 |
一次做对,真牛!
+5奖励规则>
- 提示1:6Kej5LiN562J5byP5pe277yM6KaB5qC55o2u5LiN562J5byP55qE5oCn6LSo77yM6YG15b6q5Y675YiG5q+N44CB5Y675ous5Y+344CB56e76aG544CB5ZCI5bm25ZCM57G76aG544CB57O75pWw5YyW5Li6MeeahOatpemqpOi/m+ihjO+8jOWmguaenOezu+aVsOS4uui0n+aVsO+8jOezu+aVsOWMluS4ujHml7bopoHlj5jlj7fvvI4=
- 答案:Qg==
6Kej77ya5Y675ous5Y+35b6X77yaMngtMuKJpTN4KzTvvIw8YnI+56e76aG55b6X77yaLXjiiaU277yMPGJyPuezu+aVsOWMluS4ujHlvpfvvJp44omkLTbvvI48YnI+5pWF6YCJQu+8jg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.如果a<b,那么下列不等式中一定正确的是( )
A: a-2b<-b |
B: a2<ab |
C: ab<b2 |
D: a2<b2 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Yip55So5LiN562J5byP55qE5Z+65pys5oCn6LSo77ya4pGg5LiN562J5byP55qE5Lik6L655ZCM5pe25Yqg5LiK77yI5oiW5YeP5Y6777yJ5ZCM5LiA5Liq5pWw5oiW5ZCM5LiA5Liq5ZCr5pyJ5a2X5q+N55qE5byP5a2Q77yM5LiN562J5Y+355qE5pa55ZCR5LiN5Y+Y77yb4pGh5LiN562J5byP55qE5Lik6L655ZCM5pe25LmY5Lul77yI5oiW6Zmk5Lul77yJ5ZCM5LiA5Liq5q2j5pWw77yM5LiN562J5Y+355qE5pa55ZCR5LiN5Y+Y77yb4pGi5LiN562J5byP55qE5Lik6L655ZCM5pe25LmY5Lul77yI5oiW6Zmk5Lul77yJ5ZCM5LiA5Liq6LSf5pWw77yM5LiN562J5Y+355qE5pa55ZCR5pS55Y+Y6L+b6KGM5YiG5p6Q5Y2z5Y+v77yO
- 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.下列说法中,错误的是( )
A: 如果a<b,那么a-c<b-c |
B: 如果a>b,c>0,那么ac>bc |
C: 如果a<b,c<0,那么ac>bc |
D: 如果a>b,c<0,那么 |
一次做对,真牛!
+5奖励规则>
- 提示1:55yL5ZCE5LiN562J5byP5piv5Yqg77yI5YeP77yJ5LuA5LmI5pWw77yM5oiW5LmY77yI6Zmk5Lul77yJ5ZOq5Liq5pWw5b6X5Yiw55qE77yM55So5LiN55So5Y+Y5Y+377yO
- 答案:RA==
6Kej77yaQe+8jELvvIxD5Z2H56ym5ZCI5LiN562J5byP55qE5Z+65pys5oCn6LSo77yM5q2j56Gu77ybPGJyPkTjgIHkuI3nrYnlvI/kuKTovrnpg73pmaTku6XkuIDkuKrmraPmlbDvvIzkuI3nrYnlj7fnmoTmlrnlkJHkuI3lj5jvvIzplJnor6/vvJs8YnI+5pWF6YCJ77yaRO+8jg==