BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 23 32.4%
2 Netherlands 15 21.1%
3 United States 13 18.3%
4 Germany 6 8.5%
5 Canada 6 8.5%
6 Korea, Republic of 3 4.2%
7 Malaysia 1 1.4%
8 Russia 1 1.4%
9 United Kingdom 1 1.4%
10 Argentina 1 1.4%
11 France 1 1.4%