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 103 60.2%
2 China 27 15.8%
3 Germany 14 8.2%
4 France 7 4.1%
5 United Kingdom 4 2.3%
6 Russia 4 2.3%
7 Singapore 4 2.3%
8 Malaysia 3 1.8%
9 Hong Kong 2 1.2%
10 Estonia 1 0.6%
11 Moldova, Republic of 1 0.6%
12 Ukraine 1 0.6%