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 257 57.1%
2 United States 75 16.7%
3 Germany 33 7.3%
4 Canada 21 4.7%
5 Hong Kong 16 3.6%
6 Korea, Republic of 13 2.9%
7 United Kingdom 9 2%
8 Turkey 9 2%
9 Malaysia 4 0.9%
10 Singapore 3 0.7%
11 South Africa 2 0.4%
12 Sweden 2 0.4%
13 Luxembourg 2 0.4%
14 Ireland 2 0.4%
15 Netherlands 1 0.2%
16 Ukraine 1 0.2%