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 226 45.1%
2 United States 194 38.7%
3 Germany 31 6.2%
4 Canada 25 5%
5 Hong Kong 7 1.4%
6 Singapore 4 0.8%
7 Russia 3 0.6%
8 Australia 2 0.4%
9 India 2 0.4%
10 Italy 2 0.4%
11 Taiwan 2 0.4%
12 Switzerland 1 0.2%
13 Netherlands 1 0.2%
14 Brazil 1 0.2%