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 401 47.3%
2 United States 166 19.6%
3 Netherlands 154 18.2%
4 Germany 67 7.9%
5 Russia 20 2.4%
6 Canada 15 1.8%
7 France 5 0.6%
8 India 5 0.6%
9 Singapore 3 0.4%
10 Turkey 3 0.4%
11 Ukraine 3 0.4%
12 United Kingdom 1 0.1%
13 Israel 1 0.1%
14 Moldova, Republic of 1 0.1%
15 Norway 1 0.1%
16 Poland 1 0.1%
17 Hong Kong 1 0.1%