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 60 42.6%
2 United States 32 22.7%
3 Germany 15 10.6%
4 Hong Kong 14 9.9%
5 Taiwan 11 7.8%
6 Czech Republic 2 1.4%
7 Ukraine 1 0.7%
8 United Kingdom 1 0.7%
9 Ireland 1 0.7%
10 Malaysia 1 0.7%
11 Portugal 1 0.7%
12 Singapore 1 0.7%
13 Canada 1 0.7%