BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 109 55.3%
2 United States 67 34%
3 Japan 4 2%
4 Germany 3 1.5%
5 Russia 3 1.5%
6 Canada 3 1.5%
7 Switzerland 2 1%
8 Korea, Republic of 2 1%
9 Netherlands 2 1%
10 India 1 0.5%
11 Spain 1 0.5%