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 167 52.7%
2 United States 68 21.5%
3 Germany 38 12%
4 Canada 20 6.3%
5 Taiwan 4 1.3%
6 Hong Kong 4 1.3%
7 Russia 3 0.9%
8 Turkey 2 0.6%
9 India 2 0.6%
10 Czech Republic 2 0.6%
11 Netherlands 2 0.6%
12 Norway 2 0.6%
13 Romania 2 0.6%
14 Mauritius 1 0.3%