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 287 69.5%
2 United States 46 11.1%
3 Germany 35 8.5%
4 Canada 13 3.1%
5 Russia 8 1.9%
6 Macao 7 1.7%
7 Malaysia 6 1.5%
8 Hong Kong 4 1%
9 Czech Republic 2 0.5%
10 Taiwan 2 0.5%
11 Saudi Arabia 1 0.2%
12 1 0.2%
13 Netherlands 1 0.2%