BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 218 48.8%
2 United States 113 25.3%
3 Netherlands 32 7.2%
4 Germany 32 7.2%
5 Canada 20 4.5%
6 Hong Kong 6 1.3%
7 Singapore 4 0.9%
8 Malaysia 3 0.7%
9 Australia 3 0.7%
10 Austria 2 0.4%
11 Denmark 2 0.4%
12 Japan 2 0.4%
13 Taiwan 2 0.4%
14 United Arab Emirates 2 0.4%
15 Russia 2 0.4%
16 Senegal 1 0.2%
17 United Kingdom 1 0.2%
18 Mauritius 1 0.2%
19 Brazil 1 0.2%