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 160 53%
2 United States 54 17.9%
3 Germany 42 13.9%
4 Japan 13 4.3%
5 Russia 10 3.3%
6 Taiwan 10 3.3%
7 Hong Kong 3 1%
8 Czech Republic 2 0.7%
9 Turkey 2 0.7%
10 Singapore 2 0.7%
11 Canada 2 0.7%
12 France 1 0.3%
13 India 1 0.3%