本课配套习题挑战模式1/5
单选题
难度系数:
1.若m•23=43,则m等于()
A: 2 |
B: 4 |
C: 6 |
D: 8 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruW5gueahOS5mOaWueW+l+WHum0mIzgyMjY7MjxzdXA+Mzwvc3VwPj0yPHN1cD42PC9zdXA+77yM5o6o5Ye6bT0yPHN1cD42PC9zdXA+w7cyPHN1cD4zPC9zdXA+77yM5rGC5Ye65Y2z5Y+vLg==
- 答案:RA==
6Kej77yabSYjODIyNjsyPHN1cD4zPC9zdXA+PTQ8c3VwPjM8L3N1cD7vvIw8YnI+bSYjODIyNjsyPHN1cD4zPC9zdXA+PTI8c3VwPjY8L3N1cD7vvIw8YnI+bT0yPHN1cD42PC9zdXA+w7cyPHN1cD4zPC9zdXA+PTI8c3VwPjM8L3N1cD49OO+8jDxicj7mlYXpgIlELiA=
本课配套习题挑战模式2/5
单选题
难度系数:
2.若3×9m×27m=321,则m的值为( )
A: 3 |
B: 4 |
C: 5 |
D: 6 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOmAhueUqOW5gueahOS5mOaWueeahOaAp+i0qOi9rOWMluS4uuS7pTPkuLrlupXmlbDnmoTluYLnm7jkuZjvvIzlho3liKnnlKjlkIzlupXmlbDluYLnmoTkuZjms5XnmoTmgKfotKjorqHnrpflkI7moLnmja7mjIfmlbDnm7jnrYnliJflh7rmlrnnqIvmsYLop6PljbPlj68u
- 答案:Qg==
6Kej77yaMyYjODIyNjs5PHN1cD5tPC9zdXA+JiM4MjI2OzI3PHN1cD5tPC9zdXA+PTMmIzgyMjY7MzxzdXA+Mm08L3N1cD4mIzgyMjY7MzxzdXA+M208L3N1cD49MzxzdXA+MSsybSszbTwvc3VwPj0zPHN1cD4yMTwvc3VwPu+8jDxicj7iiLQxKzJtKzNtPTIx77yMPGJyPuino+W+l209NC4gPGJyPuaVhemAiUIuIA==
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知xm=3,xn=2,则x3m+2n的值是( )
A: 31 |
B: |
C: 23 |
D: 108 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmmluWFiOagueaNruW5gueahOS5mOaWueWFrOW8j+S7peWPiuWQjOW6leaVsOeahOW5gueahOS5mOazleWFrOW8j+aKiuWOn+W8j+WMluaIkD3vvIh4PHN1cD5tPC9zdXA+77yJPHN1cD4zPC9zdXA+JiM4MjI2O++8iHg8c3VwPm48L3N1cD7vvIk8c3VwPjI8L3N1cD7ku6PlhaXorqHnrpfljbPlj68u
- 答案:RA==
6Kej77ya5Y6f5byPPe+8iHg8c3VwPm08L3N1cD7vvIk8c3VwPjM8L3N1cD4mIzgyMjY777yIeDxzdXA+bjwvc3VwPu+8iTxzdXA+Mjwvc3VwPj0zPHN1cD4zPC9zdXA+JiM4MjI2OzI8c3VwPjI8L3N1cD49MjfDlzQ9MTA4LiA8YnI+5pWF6YCJRC4g
本课配套习题挑战模式4/5
单选题
难度系数:
4.计算:(−)2014×(−2)2014=( )
A: -1 |
B: 1 |
C: 0 |
D:2014 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNru+8iGFi77yJPHN1cD5uPC9zdXA+PWE8c3VwPm48L3N1cD5iPHN1cD5uPC9zdXA+6K6h566X5Y2z5Y+v5b6X5Ye6562U5qGILg==
- 答案:Qg==
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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n为正整数,且x2n=7,则(3x3n)2-4(x2)2n的值为( )
A: 833 |
B: 1225 |
C: 2891 |
D: 3283 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruW5gueahOS5mOaWueeahOaAp+i0qO+8jOWwhuW8j+WtkOi/m+ihjOWPmOW9oueEtuWQjuS7o+WFpeaVsOaNruiuoeeul+WNs+WPry4=
- 答案:Qw==
6Kej77ya77yIM3g8c3VwPjNuPC9zdXA+77yJPHN1cD4yPC9zdXA+LTTvvIh4PHN1cD4yPC9zdXA+77yJPHN1cD4ybjwvc3VwPjxicj49Oe+8iHg8c3VwPjJuPC9zdXA+77yJPHN1cD4zPC9zdXA+LTTvvIh4PHN1cD4ybjwvc3VwPu+8iTxzdXA+Mjwvc3VwPjxicj49OcOXNzxzdXA+Mzwvc3VwPi00w5c3PHN1cD4yPC9zdXA+PGJyPj0yODkxLiA8YnI+5pWF6YCJQy4g