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 206 48.5%
2 United States 100 23.5%
3 Germany 41 9.6%
4 Canada 26 6.1%
5 Hong Kong 20 4.7%
6 Netherlands 7 1.6%
7 Taiwan 5 1.2%
8 Singapore 4 0.9%
9 Spain 2 0.5%
10 Sweden 2 0.5%
11 Switzerland 2 0.5%
12 Macao 2 0.5%
13 Malaysia 2 0.5%
14 United Kingdom 2 0.5%
15 New Zealand 2 0.5%
16 Romania 2 0.5%