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 231 63.6%
2 United States 42 11.6%
3 Germany 35 9.6%
4 Taiwan 26 7.2%
5 Hong Kong 12 3.3%
6 Russia 5 1.4%
7 Canada 5 1.4%
8 Australia 2 0.6%
9 Switzerland 2 0.6%
10 Netherlands 2 0.6%
11 France 1 0.3%