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 222 65.3%
2 United States 59 17.4%
3 Germany 36 10.6%
4 Hong Kong 5 1.5%
5 Netherlands 4 1.2%
6 Korea, Republic of 3 0.9%
7 Macao 3 0.9%
8 Taiwan 3 0.9%
9 Canada 2 0.6%
10 Russia 1 0.3%
11 Singapore 1 0.3%
12 Sweden 1 0.3%