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 64 46.4%
2 United States 32 23.2%
3 Germany 14 10.1%
4 Singapore 7 5.1%
5 Japan 6 4.3%
6 Netherlands 3 2.2%
7 Australia 3 2.2%
8 Canada 3 2.2%
9 New Zealand 2 1.4%
10 Hong Kong 2 1.4%
11 Finland 1 0.7%
12 United Kingdom 1 0.7%