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 107 67.3%
2 United States 19 11.9%
3 Germany 11 6.9%
4 Senegal 4 2.5%
5 Hong Kong 3 1.9%
6 Czech Republic 3 1.9%
7 Netherlands 2 1.3%
8 Canada 2 1.3%
9 United Kingdom 2 1.3%
10 Singapore 1 0.6%
11 New Zealand 1 0.6%
12 Portugal 1 0.6%
13 Italy 1 0.6%
14 Korea, Republic of 1 0.6%
15 Malaysia 1 0.6%