本课配套习题挑战模式1/3
单选题
难度系数:
1.
如下图所示的平面区域(阴影部分),用不等式表示为( )
A: 3x-y+3<0 |
B: 3x+y-3<0 |
C: y-3x-3<0 |
D: y-3x+3<0 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5YWI5rGC55u057q/55qE5pa556iL77yM5YaN56Gu5a6a5LiN562J5byP77yBPGJyPjwvcD4=
- 答案:Qw==
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
本课配套习题挑战模式2/3
单选题
难度系数:
2.
A: 9 |
B: 10 |
C: 11 |
D: 12 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5YWI55S75Ye65bmz6Z2i5Yy65Z+f77yM5YaN56Gu5a6a5pW05pWw54K55pWwITxicj48L3A+
- 答案:RA==
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlFLzE5L3JCQUNGRlMySjhUaURGNFdBQUJNWTJnZG0zMDY5MS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOUUvMTkvckJBQ0ZGUzJKOFRpREY0V0FBQk1ZMmdkbTMwNjkxLnBuZyIgYWx0PSIiIHN0eWxlPSJ3aWR0aDogNTM4cHg7IGhlaWdodDogMjQzcHg7Ij48YnI+PC9wPg==
本课配套习题挑战模式3/3
单选题
难度系数:
3.
A: (−∞,0) |
B: [0,1] |
C: (0,+∞) |
D: (0,1】 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5bCG6L+Z5Lik5Liq54K56YO95bim5YWl5YiwPHNwYW4gY2xhc3M9Im1hdGhxdWlsbC1yZW5kZXJlZC1tYXRoIiBzdHlsZT0iZm9udC1zaXplOjIwcHg7Ij48c3BhbiBjbGFzcz0idGV4dGFyZWEiPjx0ZXh0YXJlYSBkYXRhLWNrZS1lZGl0YWJsZT0iMSIgY29udGVudGVkaXRhYmxlPSJmYWxzZSI+PC90ZXh0YXJlYT48L3NwYW4+PHNwYW4gbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjQiPjI8L3NwYW4+PHZhciBtYXRocXVpbGwtY29tbWFuZC1pZD0iNSI+eDwvdmFyPjxzcGFuIGNsYXNzPSJiaW5hcnktb3BlcmF0b3IiIG1hdGhxdWlsbC1jb21tYW5kLWlkPSI2Ij4rPC9zcGFuPjx2YXIgbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjciPnk8L3Zhcj48c3BhbiBjbGFzcz0iYmluYXJ5LW9wZXJhdG9yIiBtYXRocXVpbGwtY29tbWFuZC1pZD0iMTIiPis8L3NwYW4+PHZhciBtYXRocXVpbGwtY29tbWFuZC1pZD0iMTMiPm08L3Zhcj48L3NwYW4+PHNwYW4+IDwvc3Bhbj7kuK3vvIzpg73opoHmu6HotrM8c3BhbiBjbGFzcz0ibWF0aHF1aWxsLXJlbmRlcmVkLW1hdGgiIHN0eWxlPSJmb250LXNpemU6MjBweDsiPjxzcGFuIGNsYXNzPSJ0ZXh0YXJlYSI+PHRleHRhcmVhIGRhdGEtY2tlLWVkaXRhYmxlPSIxIiBjb250ZW50ZWRpdGFibGU9ImZhbHNlIj48L3RleHRhcmVhPjwvc3Bhbj48c3BhbiBtYXRocXVpbGwtY29tbWFuZC1pZD0iNCI+Mjwvc3Bhbj48dmFyIG1hdGhxdWlsbC1jb21tYW5kLWlkPSI1Ij54PC92YXI+PHNwYW4gY2xhc3M9ImJpbmFyeS1vcGVyYXRvciIgbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjYiPis8L3NwYW4+PHZhciBtYXRocXVpbGwtY29tbWFuZC1pZD0iNyI+eTwvdmFyPjxzcGFuIGNsYXNzPSJiaW5hcnktb3BlcmF0b3IiIG1hdGhxdWlsbC1jb21tYW5kLWlkPSIxMiI+Kzwvc3Bhbj48dmFyIG1hdGhxdWlsbC1jb21tYW5kLWlkPSIxMyI+bTwvdmFyPjxzcGFuIGNsYXNzPSJiaW5hcnktb3BlcmF0b3IiIG1hdGhxdWlsbC1jb21tYW5kLWlkPSIxNCI+Jmx0Ozwvc3Bhbj48c3BhbiBtYXRocXVpbGwtY29tbWFuZC1pZD0iMTYiPjM8L3NwYW4+PC9zcGFuPjxzcGFuPiZuYnNwOzwvc3Bhbj48YnI+PC9wPg==
- 答案:QQ==
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzZCL0FGL3JCQUNFMVMyS1dLeDRmc1FBQUFqLUFZVG5sUTE3NS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNkIvQUYvckJBQ0UxUzJLV0t4NGZzUUFBQWotQVlUbmxRMTc1LnBuZyIgYWx0PSIiIHN0eWxlPSJ3aWR0aDogNDI4cHg7IGhlaWdodDogMTIwcHg7Ij48YnI+PC9wPg==