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 166 59.5%
2 United States 47 16.8%
3 Germany 46 16.5%
4 Hong Kong 4 1.4%
5 Canada 3 1.1%
6 Australia 2 0.7%
7 France 2 0.7%
8 Latvia 2 0.7%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 United Kingdom 2 0.7%
12 Netherlands 1 0.4%