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 203 54.7%
2 United States 85 22.9%
3 Germany 26 7%
4 Canada 23 6.2%
5 Russia 7 1.9%
6 Singapore 7 1.9%
7 Taiwan 6 1.6%
8 Netherlands 6 1.6%
9 Australia 2 0.5%
10 Hong Kong 2 0.5%
11 Sweden 2 0.5%
12 Japan 1 0.3%
13 Belarus 1 0.3%