BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 19 43.2%
2 China 9 20.5%
3 Germany 3 6.8%
4 Korea, Republic of 3 6.8%
5 Australia 2 4.5%
6 Taiwan 2 4.5%
7 France 2 4.5%
8 Hong Kong 1 2.3%
9 Italy 1 2.3%
10 Singapore 1 2.3%
11 Switzerland 1 2.3%