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 174 50.4%
2 United States 74 21.4%
3 Germany 34 9.9%
4 Netherlands 29 8.4%
5 Canada 15 4.3%
6 Russia 8 2.3%
7 Hong Kong 3 0.9%
8 Moldova, Republic of 2 0.6%
9 France 2 0.6%
10 Romania 2 0.6%
11 Singapore 1 0.3%
12 Taiwan 1 0.3%