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 26 33.3%
2 United States 17 21.8%
3 Netherlands 13 16.7%
4 Canada 10 12.8%
5 Germany 3 3.8%
6 Hong Kong 3 3.8%
7 Japan 1 1.3%
8 Malaysia 1 1.3%
9 Moldova, Republic of 1 1.3%
10 Russia 1 1.3%
11 United Kingdom 1 1.3%
12 Czech Republic 1 1.3%