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 279 68%
2 United States 51 12.4%
3 Germany 35 8.5%
4 Netherlands 19 4.6%
5 Canada 4 1%
6 Taiwan 4 1%
7 Hong Kong 3 0.7%
8 Italy 2 0.5%
9 Russia 2 0.5%
10 Singapore 2 0.5%
11 Sweden 2 0.5%
12 Turkey 2 0.5%
13 United Kingdom 2 0.5%
14 France 2 0.5%
15 Moldova, Republic of 1 0.2%