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 205 53.7%
2 United States 85 22.3%
3 Germany 37 9.7%
4 Canada 17 4.5%
5 Netherlands 15 3.9%
6 Malaysia 4 1%
7 Belarus 4 1%
8 Belgium 4 1%
9 Hong Kong 3 0.8%
10 Taiwan 3 0.8%
11 Ukraine 2 0.5%
12 United Kingdom 1 0.3%
13 Moldova, Republic of 1 0.3%
14 Singapore 1 0.3%