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 46 54.8%
2 United States 9 10.7%
3 Germany 8 9.5%
4 Hong Kong 4 4.8%
5 Taiwan 4 4.8%
6 Canada 3 3.6%
7 Peru 2 2.4%
8 Russia 2 2.4%
9 Singapore 2 2.4%
10 Belgium 1 1.2%
11 Malaysia 1 1.2%
12 Netherlands 1 1.2%
13 United Kingdom 1 1.2%