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 170 72.6%
2 United States 24 10.3%
3 Germany 17 7.3%
4 Malaysia 7 3%
5 Korea, Republic of 3 1.3%
6 Taiwan 3 1.3%
7 United Kingdom 2 0.9%
8 Switzerland 2 0.9%
9 Hong Kong 2 0.9%
10 Czech Republic 2 0.9%
11 Netherlands 1 0.4%
12 Singapore 1 0.4%