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 50 68.5%
2 China 11 15.1%
3 Netherlands 3 4.1%
4 Italy 2 2.7%
5 Japan 1 1.4%
6 Korea, Republic of 1 1.4%
7 Malaysia 1 1.4%
8 Singapore 1 1.4%
9 Germany 1 1.4%
10 Hong Kong 1 1.4%
11 Australia 1 1.4%