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 105 60.3%
2 United States 27 15.5%
3 Netherlands 17 9.8%
4 Germany 8 4.6%
5 Hong Kong 7 4%
6 Malaysia 3 1.7%
7 Moldova, Republic of 3 1.7%
8 France 2 1.1%
9 Korea, Republic of 1 0.6%
10 Sweden 1 0.6%