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 145 57.1%
2 United States 50 19.7%
3 Germany 40 15.7%
4 Hong Kong 2 0.8%
5 India 2 0.8%
6 Mexico 2 0.8%
7 Netherlands 2 0.8%
8 Russia 2 0.8%
9 Ukraine 2 0.8%
10 United Kingdom 2 0.8%
11 Canada 2 0.8%
12 France 1 0.4%
13 Australia 1 0.4%
14 Bulgaria 1 0.4%