题号 | 题目内容 | 耗时/秒 | 平均正确率 | 操作 | |
---|---|---|---|---|---|
DS-6f1wgk |
In the xy-plane,region R consists of all the points (x, y) such that 2x + 3y = 6. Is the point (r, s | 150 | 42% | ||
DS-8c2xxk |
In the xy-plane, the line k passes through the origin and through the point (a, b), where ab ≠ 0. Is | 150 | 36% | ||
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