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 176 51.5%
2 United States 107 31.3%
3 Germany 26 7.6%
4 Canada 14 4.1%
5 United Kingdom 4 1.2%
6 Netherlands 2 0.6%
7 New Zealand 2 0.6%
8 Singapore 2 0.6%
9 Costa Rica 2 0.6%
10 Hong Kong 2 0.6%
11 India 1 0.3%
12 Kazakhstan 1 0.3%
13 Korea, Republic of 1 0.3%
14 Greece 1 0.3%
15 Sweden 1 0.3%