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 93 52.2%
2 United States 24 13.5%
3 Germany 18 10.1%
4 Netherlands 14 7.9%
5 Russia 11 6.2%
6 Korea, Republic of 7 3.9%
7 Hong Kong 3 1.7%
8 India 2 1.1%
9 Italy 2 1.1%
10 Moldova, Republic of 1 0.6%
11 Morocco 1 0.6%
12 Norway 1 0.6%
13 Romania 1 0.6%