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 305 73.5%
2 United States 36 8.7%
3 Taiwan 27 6.5%
4 Canada 8 1.9%
5 Hong Kong 7 1.7%
6 Korea, Republic of 5 1.2%
7 Sweden 4 1%
8 Netherlands 4 1%
9 Nigeria 4 1%
10 Poland 3 0.7%
11 Belgium 3 0.7%
12 Macao 2 0.5%
13 Malaysia 2 0.5%
14 Russia 2 0.5%
15 Germany 2 0.5%
16 Czech Republic 1 0.2%