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 190 56.9%
2 United States 43 12.9%
3 Germany 36 10.8%
4 Netherlands 35 10.5%
5 Canada 13 3.9%
6 Hong Kong 4 1.2%
7 Russia 3 0.9%
8 Italy 3 0.9%
9 Malaysia 2 0.6%
10 Iran, Islamic Republic of 2 0.6%
11 France 2 0.6%
12 Mauritius 1 0.3%