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 94 47%
2 United States 37 18.5%
3 Netherlands 17 8.5%
4 Canada 9 4.5%
5 Singapore 7 3.5%
6 Germany 6 3%
7 Hong Kong 6 3%
8 Taiwan 5 2.5%
9 Malaysia 5 2.5%
10 United Kingdom 4 2%
11 Korea, Republic of 3 1.5%
12 Australia 2 1%
13 Brazil 2 1%
14 France 1 0.5%
15 Japan 1 0.5%
16 Ukraine 1 0.5%