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 439 79.5%
2 United States 39 7.1%
3 Germany 33 6%
4 Hong Kong 14 2.5%
5 Taiwan 9 1.6%
6 Singapore 8 1.4%
7 Korea, Republic of 3 0.5%
8 Japan 2 0.4%
9 United Kingdom 2 0.4%
10 Macao 1 0.2%
11 Netherlands 1 0.2%
12 Russia 1 0.2%