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 71 49.3%
2 United States 31 21.5%
3 Germany 15 10.4%
4 Hong Kong 12 8.3%
5 Taiwan 4 2.8%
6 Canada 3 2.1%
7 Russia 2 1.4%
8 Czech Republic 2 1.4%
9 Portugal 1 0.7%
10 Singapore 1 0.7%
11 Ukraine 1 0.7%
12 United Kingdom 1 0.7%