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 175 58.9%
2 United States 57 19.2%
3 Germany 25 8.4%
4 Hong Kong 8 2.7%
5 Netherlands 8 2.7%
6 Taiwan 8 2.7%
7 Singapore 7 2.4%
8 Malaysia 3 1%
9 Australia 2 0.7%
10 United Kingdom 2 0.7%
11 Belgium 1 0.3%
12 Canada 1 0.3%