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 172 61.4%
2 United States 41 14.6%
3 Germany 37 13.2%
4 Ireland 6 2.1%
5 Singapore 6 2.1%
6 Norway 4 1.4%
7 Malaysia 3 1.1%
8 Moldova, Republic of 3 1.1%
9 Colombia 2 0.7%
10 Finland 2 0.7%
11 Canada 2 0.7%
12 Australia 1 0.4%
13 Hong Kong 1 0.4%