BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 209 70.1%
2 United States 59 19.8%
3 Germany 8 2.7%
4 Canada 5 1.7%
5 Japan 4 1.3%
6 Singapore 3 1%
7 Hong Kong 3 1%
8 Spain 2 0.7%
9 United Kingdom 2 0.7%
10 Netherlands 2 0.7%
11 Czech Republic 1 0.3%