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 171 57.8%
2 United States 54 18.2%
3 Germany 30 10.1%
4 Canada 11 3.7%
5 Hong Kong 8 2.7%
6 Taiwan 7 2.4%
7 Netherlands 3 1%
8 Singapore 2 0.7%
9 France 2 0.7%
10 Luxembourg 2 0.7%
11 Ukraine 2 0.7%
12 United Arab Emirates 2 0.7%
13 Mauritius 1 0.3%
14 Moldova, Republic of 1 0.3%