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 46 42.2%
2 United States 15 13.8%
3 Netherlands 14 12.8%
4 Germany 10 9.2%
5 Malaysia 10 9.2%
6 Hong Kong 6 5.5%
7 Korea, Republic of 2 1.8%
8 Russia 2 1.8%
9 Singapore 2 1.8%
10 Taiwan 2 1.8%