数字序列

数字序列探测您的归纳推理 - 从有限的例子中提取规则。

这里的规则范围从简单的算术序列到多项式和交错模式。

速度与准确性同样重要；目标是快速识别规则。

类似的序列出现在IQ测试、GMAT和竞争性入学考试中。

Each test is constructed using Item Response Theory (IRT) and Classical Test Theory (CTT) to ensure reliable measurement of knowledge and ability across different difficulty levels.

Questions undergo rigorous review including difficulty calibration, discrimination analysis, and distractor effectiveness evaluation to maintain high assessment quality.

1. 查看前四个数字。
2. 识别规则（加、乘、平方、斐波那契……）。
3. 输入下一个数字并按回车。
4. 错误答案简要显示规则。