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 44 42.3%
2 United States 19 18.3%
3 Netherlands 17 16.3%
4 Hong Kong 5 4.8%
5 United Kingdom 5 4.8%
6 Taiwan 3 2.9%
7 Canada 3 2.9%
8 Malaysia 2 1.9%
9 Russia 1 1%
10 Singapore 1 1%
11 Korea, Republic of 1 1%
12 Estonia 1 1%
13 Germany 1 1%
14 Ukraine 1 1%