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 330 48%
2 Netherlands 133 19.3%
3 United States 125 18.2%
4 Germany 58 8.4%
5 Canada 16 2.3%
6 France 5 0.7%
7 Australia 5 0.7%
8 Belgium 2 0.3%
9 Finland 2 0.3%
10 India 2 0.3%
11 Singapore 2 0.3%
12 Thailand 2 0.3%
13 Turkey 2 0.3%
14 Norway 1 0.1%
15 Iran, Islamic Republic of 1 0.1%
16 Israel 1 0.1%
17 Korea, Republic of 1 0.1%