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 166 49.8%
2 United States 82 24.6%
3 Germany 26 7.8%
4 Hong Kong 16 4.8%
5 Canada 13 3.9%
6 Czech Republic 6 1.8%
7 Taiwan 5 1.5%
8 Russia 4 1.2%
9 Singapore 4 1.2%
10 South Africa 3 0.9%
11 Netherlands 3 0.9%
12 Korea, Republic of 2 0.6%
13 Macao 1 0.3%
14 Moldova, Republic of 1 0.3%
15 Romania 1 0.3%