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 37 44.6%
2 United States 13 15.7%
3 Germany 6 7.2%
4 Hong Kong 4 4.8%
5 Japan 3 3.6%
6 Malaysia 3 3.6%
7 Singapore 3 3.6%
8 Switzerland 2 2.4%
9 Taiwan 2 2.4%
10 Korea, Republic of 2 2.4%
11 Estonia 2 2.4%
12 Australia 2 2.4%
13 Austria 1 1.2%
14 Italy 1 1.2%
15 United Kingdom 1 1.2%
16 Russia 1 1.2%