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 United States 29 33.7%
2 China 19 22.1%
3 Netherlands 12 14%
4 Germany 10 11.6%
5 Mexico 5 5.8%
6 Hong Kong 2 2.3%
7 Japan 2 2.3%
8 Czech Republic 2 2.3%
9 France 1 1.2%
10 Norway 1 1.2%
11 Spain 1 1.2%
12 United Kingdom 1 1.2%
13 Canada 1 1.2%