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 210 58.7%
2 Germany 54 15.1%
3 United States 45 12.6%
4 Netherlands 26 7.3%
5 Japan 5 1.4%
6 Canada 4 1.1%
7 Hong Kong 3 0.8%
8 India 2 0.6%
9 Czech Republic 2 0.6%
10 Russia 2 0.6%
11 Singapore 2 0.6%
12 Taiwan 1 0.3%
13 Australia 1 0.3%
14 Romania 1 0.3%