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 152 53.5%
2 United States 54 19%
3 Germany 38 13.4%
4 Netherlands 11 3.9%
5 Taiwan 9 3.2%
6 Canada 3 1.1%
7 Russia 3 1.1%
8 Singapore 3 1.1%
9 Sweden 2 0.7%
10 Finland 2 0.7%
11 Moldova, Republic of 2 0.7%
12 United Kingdom 2 0.7%
13 Ukraine 1 0.4%
14 France 1 0.4%
15 Hong Kong 1 0.4%