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 60 44.8%
2 United States 32 23.9%
3 Germany 12 9%
4 Netherlands 11 8.2%
5 Russia 3 2.2%
6 Italy 3 2.2%
7 Japan 3 2.2%
8 Korea, Republic of 2 1.5%
9 Mexico 2 1.5%
10 Moldova, Republic of 2 1.5%
11 Hong Kong 2 1.5%
12 India 1 0.7%
13 Israel 1 0.7%