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 188 57.1%
2 United States 54 16.4%
3 Germany 47 14.3%
4 Hong Kong 11 3.3%
5 Taiwan 5 1.5%
6 Brazil 4 1.2%
7 Canada 4 1.2%
8 Japan 3 0.9%
9 Russia 3 0.9%
10 Australia 2 0.6%
11 Macao 2 0.6%
12 United Kingdom 2 0.6%
13 India 2 0.6%
14 Korea, Republic of 1 0.3%
15 Singapore 1 0.3%