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 54 35.3%
2 United States 44 28.8%
3 Netherlands 11 7.2%
4 Russia 8 5.2%
5 Canada 8 5.2%
6 Taiwan 7 4.6%
7 Germany 6 3.9%
8 Japan 6 3.9%
9 France 3 2%
10 Brazil 2 1.3%
11 Czech Republic 2 1.3%
12 Hong Kong 1 0.7%
13 Indonesia 1 0.7%