BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 199 60.9%
2 United States 70 21.4%
3 Germany 25 7.6%
4 Canada 11 3.4%
5 Taiwan 4 1.2%
6 Macao 4 1.2%
7 Russia 3 0.9%
8 Singapore 2 0.6%
9 New Zealand 2 0.6%
10 Hong Kong 2 0.6%
11 United Kingdom 2 0.6%
12 Ireland 1 0.3%
13 Japan 1 0.3%
14 Korea, Republic of 1 0.3%