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 169 68.4%
2 United States 36 14.6%
3 Germany 16 6.5%
4 Hong Kong 5 2%
5 Taiwan 5 2%
6 Chile 3 1.2%
7 Ukraine 2 0.8%
8 Korea, Republic of 2 0.8%
9 Singapore 2 0.8%
10 Denmark 2 0.8%
11 2 0.8%
12 Austria 1 0.4%
13 Brazil 1 0.4%
14 United Kingdom 1 0.4%