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 200 51.2%
2 United States 119 30.4%
3 Germany 28 7.2%
4 Hong Kong 14 3.6%
5 Canada 14 3.6%
6 Russia 4 1%
7 Taiwan 3 0.8%
8 Norway 3 0.8%
9 India 2 0.5%
10 Lithuania 2 0.5%
11 France 1 0.3%
12 Singapore 1 0.3%