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 75 36.6%
2 United States 74 36.1%
3 Germany 21 10.2%
4 Hong Kong 13 6.3%
5 Canada 6 2.9%
6 Taiwan 4 2%
7 United Kingdom 3 1.5%
8 Czech Republic 2 1%
9 Korea, Republic of 2 1%
10 Macao 1 0.5%
11 Portugal 1 0.5%
12 Singapore 1 0.5%
13 Japan 1 0.5%
14 Ukraine 1 0.5%