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 530 74.4%
2 United States 108 15.2%
3 Germany 26 3.7%
4 Canada 10 1.4%
5 Russia 8 1.1%
6 Singapore 7 1%
7 Hong Kong 7 1%
8 Netherlands 4 0.6%
9 Taiwan 4 0.6%
10 United Kingdom 4 0.6%
11 Macao 2 0.3%
12 Malaysia 1 0.1%
13 Japan 1 0.1%