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 54 62.8%
2 Germany 9 10.5%
3 United States 9 10.5%
4 Netherlands 3 3.5%
5 Italy 3 3.5%
6 Hong Kong 2 2.3%
7 Brazil 2 2.3%
8 Austria 1 1.2%
9 France 1 1.2%
10 India 1 1.2%
11 Korea, Republic of 1 1.2%