BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 123 53.5%
2 United States 70 30.4%
3 Netherlands 22 9.6%
4 Germany 3 1.3%
5 Romania 2 0.9%
6 Bosnia and Herzegovina 2 0.9%
7 France 2 0.9%
8 Japan 2 0.9%
9 Finland 1 0.4%
10 Ukraine 1 0.4%
11 Hong Kong 1 0.4%
12 India 1 0.4%