BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 43 37.7%
2 Germany 22 19.3%
3 United States 21 18.4%
4 Canada 7 6.1%
5 Netherlands 6 5.3%
6 Taiwan 4 3.5%
7 Russia 3 2.6%
8 Hong Kong 3 2.6%
9 South Africa 2 1.8%
10 Portugal 1 0.9%
11 Brazil 1 0.9%
12 Ukraine 1 0.9%