2 |
22 |
7 |
π |
3 |
3 |
A.1 | B.2 | C.3 | D.4 |
22 |
7 |
2 |
π |
3 |
3 |
3 | 3 |
• |
2 |
3π |
4 |
22 |
7 |
131 |
11 |
4 |
A.1 | B.2 | C.3 | D.4 |
A.平方根等于本身的数是0和1 |
B.立方根等于本身的数只有0和1 |
C.无限小数就是无理数 |
D.实数与数轴上的点是一一对应的 |
π |
7 |
2 |
7 |
8 |
3 | 9 |
25 |
A.3 | B.4 | C.5 | D.6 |
.. |
21 |
2 |
22 |
7 |
3 | -7 |
A.1个 | B.2个 | C.3个 | D.4个 |
22 |
3 |
1 |
2 |
0.9 |
3 | -0.8 |
3 | 27 |
A.6个 | B.5个 | C.4个 | D.3个 |
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