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 198 47.4%
2 United States 150 35.9%
3 Germany 33 7.9%
4 Taiwan 7 1.7%
5 Tunisia 6 1.4%
6 Ireland 5 1.2%
7 Canada 4 1%
8 Norway 3 0.7%
9 Japan 3 0.7%
10 Hong Kong 2 0.5%
11 2 0.5%
12 Togo 2 0.5%
13 Australia 1 0.2%
14 Brazil 1 0.2%
15 Moldova, Republic of 1 0.2%