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 85 61.2%
2 United States 14 10.1%
3 Netherlands 11 7.9%
4 Korea, Republic of 7 5%
5 Germany 6 4.3%
6 Taiwan 6 4.3%
7 Hong Kong 4 2.9%
8 Malaysia 2 1.4%
9 Russia 2 1.4%
10 Singapore 2 1.4%