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 62 42.5%
2 United States 17 11.6%
3 Netherlands 15 10.3%
4 France 14 9.6%
5 Russia 14 9.6%
6 Germany 9 6.2%
7 Taiwan 5 3.4%
8 Ukraine 2 1.4%
9 Czech Republic 2 1.4%
10 2 1.4%
11 Korea, Republic of 2 1.4%
12 Portugal 1 0.7%
13 India 1 0.7%