BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 21 46.7%
2 United States 6 13.3%
3 Netherlands 5 11.1%
4 Hong Kong 3 6.7%
5 Canada 3 6.7%
6 Malaysia 2 4.4%
7 Czech Republic 1 2.2%
8 Germany 1 2.2%
9 Russia 1 2.2%
10 Singapore 1 2.2%
11 Taiwan 1 2.2%