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 142 46.6%
2 United States 99 32.5%
3 Germany 38 12.5%
4 India 3 1%
5 Ukraine 3 1%
6 Canada 3 1%
7 Chile 3 1%
8 Netherlands 2 0.7%
9 Singapore 2 0.7%
10 Sweden 2 0.7%
11 Japan 2 0.7%
12 Hong Kong 2 0.7%
13 Hungary 2 0.7%
14 Kazakhstan 1 0.3%
15 Mauritius 1 0.3%