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 265 55.2%
2 United States 154 32.1%
3 Germany 23 4.8%
4 Hong Kong 18 3.8%
5 Korea, Republic of 5 1%
6 Taiwan 5 1%
7 Romania 3 0.6%
8 Canada 2 0.4%
9 Netherlands 2 0.4%
10 Ireland 1 0.2%
11 Japan 1 0.2%
12 United Kingdom 1 0.2%