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 57 57.6%
2 Netherlands 15 15.2%
3 United States 10 10.1%
4 Singapore 4 4%
5 Germany 4 4%
6 France 3 3%
7 Hong Kong 2 2%
8 Taiwan 2 2%
9 Canada 1 1%
10 Korea, Republic of 1 1%