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 176 60.5%
2 Germany 35 12%
3 United States 32 11%
4 Netherlands 31 10.7%
5 Taiwan 4 1.4%
6 Canada 3 1%
7 India 2 0.7%
8 United Kingdom 2 0.7%
9 Sweden 2 0.7%
10 Hong Kong 1 0.3%
11 Norway 1 0.3%
12 Russia 1 0.3%
13 Singapore 1 0.3%