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 259 45.8%
2 United States 190 33.6%
3 Germany 36 6.4%
4 Netherlands 23 4.1%
5 Canada 15 2.7%
6 Macao 9 1.6%
7 Sweden 8 1.4%
8 Singapore 6 1.1%
9 Mexico 4 0.7%
10 Uzbekistan 3 0.5%
11 Hong Kong 3 0.5%
12 Australia 3 0.5%
13 France 2 0.4%
14 India 2 0.4%
15 Greece 1 0.2%
16 Brazil 1 0.2%