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 198 44.3%
2 United States 173 38.7%
3 Germany 33 7.4%
4 Canada 15 3.4%
5 Hong Kong 5 1.1%
6 Taiwan 3 0.7%
7 United Kingdom 3 0.7%
8 Malaysia 3 0.7%
9 Netherlands 3 0.7%
10 Singapore 2 0.4%
11 Sri Lanka 2 0.4%
12 Korea, Republic of 2 0.4%
13 France 2 0.4%
14 Hungary 1 0.2%
15 Japan 1 0.2%
16 Russia 1 0.2%