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 143 64.1%
2 United States 33 14.8%
3 Germany 14 6.3%
4 Brazil 7 3.1%
5 Hong Kong 5 2.2%
6 Portugal 5 2.2%
7 3 1.3%
8 Taiwan 3 1.3%
9 United Kingdom 3 1.3%
10 Senegal 2 0.9%
11 Singapore 1 0.4%
12 Czech Republic 1 0.4%
13 France 1 0.4%
14 Russia 1 0.4%
15 Malaysia 1 0.4%