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 61%
2 United States 53 15.9%
3 Germany 38 11.4%
4 Canada 19 5.7%
5 France 5 1.5%
6 Hong Kong 3 0.9%
7 Moldova, Republic of 2 0.6%
8 Netherlands 2 0.6%
9 Singapore 2 0.6%
10 Sweden 2 0.6%
11 Russia 1 0.3%
12 1 0.3%
13 Albania 1 0.3%
14 Belarus 1 0.3%