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 China 51 42.1%
2 United States 31 25.6%
3 Germany 13 10.7%
4 Hong Kong 6 5%
5 Netherlands 4 3.3%
6 United Kingdom 4 3.3%
7 3 2.5%
8 Taiwan 3 2.5%
9 Estonia 2 1.7%
10 Portugal 1 0.8%
11 Russia 1 0.8%
12 Latvia 1 0.8%
13 Moldova, Republic of 1 0.8%