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 United States 81 53.6%
2 China 28 18.5%
3 Netherlands 23 15.2%
4 Canada 3 2%
5 India 2 1.3%
6 Nigeria 2 1.3%
7 Pakistan 2 1.3%
8 Germany 2 1.3%
9 Hong Kong 1 0.7%
10 France 1 0.7%
11 Russia 1 0.7%
12 Sri Lanka 1 0.7%
13 Taiwan 1 0.7%
14 Turkey 1 0.7%
15 Indonesia 1 0.7%
16 Iran, Islamic Republic of 1 0.7%