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 53 32.3%
2 United States 53 32.3%
3 Germany 19 11.6%
4 Netherlands 16 9.8%
5 Singapore 6 3.7%
6 United Kingdom 5 3%
7 Korea, Republic of 4 2.4%
8 Hong Kong 4 2.4%
9 Japan 2 1.2%
10 Taiwan 1 0.6%
11 Russia 1 0.6%