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 136 46.6%
2 United States 85 29.1%
3 Germany 37 12.7%
4 Taiwan 8 2.7%
5 Japan 6 2.1%
6 Hong Kong 5 1.7%
7 Russia 4 1.4%
8 Canada 3 1%
9 Macao 2 0.7%
10 Netherlands 2 0.7%
11 Ireland 2 0.7%
12 Australia 1 0.3%
13 India 1 0.3%