BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 United States 28 30.4%
2 China 23 25%
3 Netherlands 13 14.1%
4 Switzerland 13 14.1%
5 Canada 5 5.4%
6 Korea, Republic of 4 4.3%
7 Czech Republic 2 2.2%
8 Turkey 2 2.2%
9 Spain 2 2.2%