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 436 77.4%
2 United States 55 9.8%
3 Taiwan 18 3.2%
4 Germany 13 2.3%
5 Hong Kong 10 1.8%
6 United Kingdom 7 1.2%
7 6 1.1%
8 Japan 5 0.9%
9 Canada 3 0.5%
10 Russia 3 0.5%
11 Singapore 2 0.4%
12 Sweden 1 0.2%
13 Viet Nam 1 0.2%
14 France 1 0.2%
15 Korea, Republic of 1 0.2%
16 Portugal 1 0.2%