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 14 25.9%
2 Bulgaria 11 20.4%
3 China 5 9.3%
4 Germany 4 7.4%
5 Taiwan 4 7.4%
6 Hong Kong 3 5.6%
7 Australia 3 5.6%
8 Canada 2 3.7%
9 Malaysia 2 3.7%
10 Netherlands 1 1.9%
11 Russia 1 1.9%
12 Sweden 1 1.9%
13 Bahrain 1 1.9%
14 Brazil 1 1.9%
15 Korea, Republic of 1 1.9%