1 |
3 |
3 |
5 |
1 |
4 |
3 |
5×7 |
3 |
7×9 |
3 |
9×11 |
3 |
11×13 |
3 |
13×15 |
1 |
3 |
3 |
5 |
1 |
4 |
1 |
3 |
3 |
5 |
1 |
4 |
1 |
4 |
1 |
3 |
3 |
5×7 |
3 |
7×9 |
3 |
9×11 |
3 |
11×13 |
3 |
13×15 |
1 |
5 |
1 |
7 |
1 |
7 |
1 |
9 |
1 |
9 |
1 |
11 |
1 |
11 |
1 |
13 |
1 |
13 |
1 |
15 |
1 |
5 |
1 |
15 |
2 |
5 |
A.一个数一定能确定一个位置 | ||
B.一个数的倒数一定比这个数小 | ||
C.
| ||
D.若两个正方形的周长比是1:2,则面积比为1:4 |
A.
| B.
| C.
| D.
|
2 |
3 |
1 |
16 |
2 |
3 |
11 |
12 |
14 |
15 |
1 |
8 |
1 |
2 |
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