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 124 55.1%
2 United States 44 19.6%
3 Netherlands 22 9.8%
4 Germany 10 4.4%
5 Russia 6 2.7%
6 France 3 1.3%
7 Moldova, Republic of 2 0.9%
8 Viet Nam 2 0.9%
9 Spain 2 0.9%
10 India 2 0.9%
11 Finland 2 0.9%
12 Indonesia 1 0.4%
13 Nigeria 1 0.4%
14 Pakistan 1 0.4%
15 Poland 1 0.4%
16 United Arab Emirates 1 0.4%
17 United Kingdom 1 0.4%