1 |
1+2 |
1 |
1+2+3 |
1 |
1+2+3+…+100 |
2 |
2 |
2 |
3 |
2 |
3 |
2 |
4 |
2 |
4 |
2 |
5 |
2 |
100 |
2 |
100+1 |
2 |
2 |
2 |
3 |
2 |
3 |
2 |
4 |
2 |
4 |
2 |
5 |
2 |
5 |
2 |
100 |
2 |
100 |
2 |
100+1 |
2 |
2 |
2 |
100+1 |
2 |
101 |
99 |
101 |
99 |
101 |
a |
b |
A.1个 | B.2个 | C.3个 | D.D4个 |
1 |
2 |
2 |
3 |
1 |
5 |
2 |
3 |
1 |
3 |
3 |
2 |
1 |
2 |
1 |
3 |
5 |
6 |
4 |
9 |
1 |
3 |
1 |
3 |
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