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 390 78.3%
2 United States 58 11.6%
3 Germany 16 3.2%
4 Hong Kong 7 1.4%
5 United Kingdom 5 1%
6 Portugal 5 1%
7 Taiwan 4 0.8%
8 Singapore 3 0.6%
9 3 0.6%
10 Australia 1 0.2%
11 Czech Republic 1 0.2%
12 Malaysia 1 0.2%
13 Mexico 1 0.2%
14 Ukraine 1 0.2%
15 Russia 1 0.2%
16 Senegal 1 0.2%