BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 46 50.5%
2 China 24 26.4%
3 United Kingdom 5 5.5%
4 Germany 4 4.4%
5 Russia 3 3.3%
6 Taiwan 3 3.3%
7 France 2 2.2%
8 Korea, Republic of 1 1.1%
9 Moldova, Republic of 1 1.1%
10 Ukraine 1 1.1%
11 Singapore 1 1.1%