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 280 70.5%
2 United States 54 13.6%
3 Germany 32 8.1%
4 Canada 11 2.8%
5 Taiwan 4 1%
6 Hong Kong 4 1%
7 Italy 2 0.5%
8 Netherlands 2 0.5%
9 Nigeria 2 0.5%
10 Singapore 2 0.5%
11 Slovakia 2 0.5%
12 Malaysia 1 0.3%
13 United Arab Emirates 1 0.3%