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 96 37.8%
2 United States 69 27.2%
3 Netherlands 18 7.1%
4 Sweden 18 7.1%
5 France 10 3.9%
6 Korea, Republic of 9 3.5%
7 Germany 8 3.1%
8 Russia 4 1.6%
9 Slovenia 4 1.6%
10 Moldova, Republic of 4 1.6%
11 Mauritius 3 1.2%
12 Hong Kong 2 0.8%
13 India 2 0.8%
14 Poland 2 0.8%
15 Norway 1 0.4%
16 Switzerland 1 0.4%
17 Ukraine 1 0.4%
18 Kazakhstan 1 0.4%
19 Finland 1 0.4%