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 78 47.6%
2 Netherlands 22 13.4%
3 United States 17 10.4%
4 Russia 13 7.9%
5 France 12 7.3%
6 Germany 10 6.1%
7 Canada 5 3%
8 Moldova, Republic of 2 1.2%
9 Czech Republic 2 1.2%
10 Singapore 2 1.2%
11 Portugal 1 0.6%