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 185 57.1%
2 United States 55 17%
3 Germany 39 12%
4 Hong Kong 17 5.2%
5 Malaysia 5 1.5%
6 Poland 3 0.9%
7 Russia 3 0.9%
8 Singapore 2 0.6%
9 Taiwan 2 0.6%
10 Canada 2 0.6%
11 United Kingdom 2 0.6%
12 Netherlands 2 0.6%
13 Japan 2 0.6%
14 Macao 2 0.6%
15 Czech Republic 1 0.3%
16 Ukraine 1 0.3%
17 Spain 1 0.3%