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 64 56.6%
2 Netherlands 13 11.5%
3 United States 11 9.7%
4 Germany 7 6.2%
5 Hong Kong 7 6.2%
6 France 3 2.7%
7 Canada 3 2.7%
8 Japan 2 1.8%
9 Moldova, Republic of 2 1.8%
10 Poland 1 0.9%