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 327 71.1%
2 United States 62 13.5%
3 Germany 28 6.1%
4 Canada 11 2.4%
5 Hong Kong 9 2%
6 Japan 5 1.1%
7 Denmark 4 0.9%
8 Russia 3 0.7%
9 Taiwan 3 0.7%
10 Sweden 2 0.4%
11 New Zealand 2 0.4%
12 France 1 0.2%
13 Czech Republic 1 0.2%
14 Spain 1 0.2%
15 Viet Nam 1 0.2%