本课配套习题挑战模式3/5
单选题
难度系数:
3.
对于数a、b、c、d,规定,< a、b、c、d>=2ab-c+d,已知<1、3、5、x>=7,
则x的值为( )
A: 6 |
B: 7 |
C: 8 |
D: 9 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5qC55o2u5paw5a6a5LmJ55qE566X5byP77yM5YiX5Ye65YWz5LqOeOeahOetieW8j++8jOino+WHunjljbPlj688L3A+
- 答案:QQ==
PGRpdj7op6PvvJrlsIYx44CBM+OAgTXjgIF45Luj5YWl5paw5a6a5LmJ55qE6L+Q566X5b6X77yaMsOXMcOXM++8jTXvvIt477ydMe+8i3jvvIzlj4jmoLnmja7lt7Lnn6UmbHQ7IDHjgIEz44CBNeOAgXgmZ3Q777ydN++8jOaJgOS7pTHvvIt477ydN++8jHjvvJ0244CCPGI+44CA44CAPC9iPjwvZGl2Pg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.
规定:符号“&”为选择两数中较大数的运算,“◎”为选择两数中较小数的运算。
计算下式:[(7◎6)&5]×[ 5◎(3 & 9)] 的值( )
A: 10 |
B: 20 |
C: 30 |
D: 40 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5paw5a6a5LmJ6L+Q566X6L+b6KGM6K6h566X5pe25aaC5p6c6YGH5Yiw5pyJ5ous5Y+355qE77yM6KaB5YWI6K6h566X5bCP5ous5Y+36YeM55qE77yM5YaN6K6h566X5Lit5ous5Y+36YeM55qEPC9wPg==
- 答案:Qw==
PGRpdj7op6PvvJpb77yIN+KXjjbvvIkmYW1wOzVdw5dbIDXil47vvIgzICZhbXA7IDnvvIld44CA44CAPC9kaXY+PGRpdj7vvJ1bIDYgJmFtcDsgNV0gw5dbIDXil445IF3jgIDjgIA8L2Rpdj48ZGl2Pu+8nTbDlzXjgIDjgIA8L2Rpdj48ZGl2Pu+8nTMw44CAPGI+44CAPC9iPjwvZGl2Pg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.
如果1※2=1+11,2※3=2+22+222 ,3※4=3+33+333+333+3333
计算:(5※3)×5的值( )
A: 3075 |
B: 3065 |
C: 3055 |
D: 3045 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+6YCa6L+H6KeC5a+f5Y+R546w77yaYeKAu2LkuK3nmoRi6KGo56S65Yqg5pWw55qE5Liq5pWw77yM5q+P5Liq5Yqg5pWw5pWw5L2N5LiK55qE5pWw5a2X6YO955SxYee7hOaIkO+8jOmDveeUseS4gOS4quaVsOS9je+8jOS+neasoeWinuWKoOWIsGLkuKrmlbDkvY08L3A+
- 答案:QQ==
PGRpdj7op6PvvJrvvIg14oC7M++8icOXNe+8ne+8iDXvvIs1Ne+8izU1Ne+8icOXNe+8nTMwNzXjgIDjgIA8L2Rpdj4=