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 170 60.9%
2 United States 58 20.8%
3 Germany 20 7.2%
4 Netherlands 13 4.7%
5 France 6 2.2%
6 Australia 3 1.1%
7 Canada 3 1.1%
8 Russia 2 0.7%
9 United Kingdom 1 0.4%
10 Brazil 1 0.4%
11 Poland 1 0.4%
12 Hong Kong 1 0.4%