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 192 54.2%
2 United States 73 20.6%
3 Germany 30 8.5%
4 Japan 12 3.4%
5 Hong Kong 9 2.5%
6 Korea, Republic of 8 2.3%
7 United Kingdom 6 1.7%
8 Singapore 6 1.7%
9 Australia 4 1.1%
10 Canada 4 1.1%
11 Philippines 2 0.6%
12 Romania 2 0.6%
13 Taiwan 2 0.6%
14 Ireland 2 0.6%
15 Malaysia 1 0.3%
16 Netherlands 1 0.3%