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 239 58.3%
2 United States 106 25.9%
3 Germany 31 7.6%
4 Canada 11 2.7%
5 Singapore 6 1.5%
6 Hong Kong 5 1.2%
7 Netherlands 2 0.5%
8 New Zealand 2 0.5%
9 2 0.5%
10 Ukraine 2 0.5%
11 Taiwan 1 0.2%
12 Brazil 1 0.2%
13 Denmark 1 0.2%
14 Russia 1 0.2%