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 86 57.7%
2 United States 14 9.4%
3 France 11 7.4%
4 Netherlands 7 4.7%
5 India 6 4%
6 Russia 6 4%
7 Iran, Islamic Republic of 4 2.7%
8 Indonesia 3 2%
9 Taiwan 3 2%
10 Australia 3 2%
11 Turkey 2 1.3%
12 Singapore 2 1.3%
13 Korea, Republic of 1 0.7%
14 Norway 1 0.7%