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 44 44.4%
2 United States 19 19.2%
3 Germany 9 9.1%
4 Egypt 5 5.1%
5 Netherlands 4 4%
6 Taiwan 4 4%
7 Hong Kong 3 3%
8 Ireland 3 3%
9 India 2 2%
10 Czech Republic 2 2%
11 Brazil 2 2%
12 France 1 1%
13 Korea, Republic of 1 1%