1021
3
47
1187
0
47
1018
2
47
1564
0
47
6573
0
46
3632
2
46
2050
10
46
1455
0
46
1026
8
46
1272
12
46
814
4
46
2026
1
46
1297
0
45
1472
0
45
2154
2
45
593
4
45
1125
2
45
2664
3
45
Didn't find what you're looking for? Try searching on Q&A, too!
Keyword(s): 中2 理科