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 138 49.5%
2 United States 71 25.4%
3 Germany 16 5.7%
4 Hong Kong 10 3.6%
5 Taiwan 7 2.5%
6 Iran, Islamic Republic of 6 2.2%
7 Portugal 5 1.8%
8 Singapore 4 1.4%
9 Senegal 3 1.1%
10 Malaysia 3 1.1%
11 Brazil 3 1.1%
12 Canada 2 0.7%
13 Sweden 2 0.7%
14 United Kingdom 2 0.7%
15 Slovenia 1 0.4%
16 Spain 1 0.4%
17 Netherlands 1 0.4%
18 Philippines 1 0.4%
19 Russia 1 0.4%
20 France 1 0.4%
21 Japan 1 0.4%