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 182 63.9%
2 Germany 42 14.7%
3 United States 25 8.8%
4 Hong Kong 8 2.8%
5 Malaysia 5 1.8%
6 Netherlands 3 1.1%
7 Brazil 3 1.1%
8 Canada 3 1.1%
9 Macao 3 1.1%
10 Taiwan 3 1.1%
11 Ukraine 2 0.7%
12 United Kingdom 2 0.7%
13 Finland 2 0.7%
14 Russia 1 0.4%
15 Switzerland 1 0.4%