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 220 62.1%
2 United States 65 18.4%
3 Germany 44 12.4%
4 Canada 5 1.4%
5 Hong Kong 4 1.1%
6 Macao 3 0.8%
7 Russia 3 0.8%
8 Czech Republic 3 0.8%
9 France 3 0.8%
10 Australia 2 0.6%
11 Finland 1 0.3%
12 Taiwan 1 0.3%