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 214 54.5%
2 United States 93 23.7%
3 Germany 31 7.9%
4 Netherlands 25 6.4%
5 Taiwan 7 1.8%
6 Russia 5 1.3%
7 Hong Kong 4 1%
8 Macao 4 1%
9 Singapore 3 0.8%
10 Sweden 3 0.8%
11 2 0.5%
12 United Kingdom 1 0.3%
13 Mauritius 1 0.3%