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 106 45.3%
2 United States 100 42.7%
3 Canada 10 4.3%
4 Germany 7 3%
5 Japan 2 0.9%
6 Luxembourg 2 0.9%
7 Singapore 2 0.9%
8 Turkey 1 0.4%
9 Chile 1 0.4%
10 Australia 1 0.4%
11 Bulgaria 1 0.4%
12 Hong Kong 1 0.4%