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 22 46.8%
2 United States 9 19.1%
3 Saudi Arabia 3 6.4%
4 Germany 3 6.4%
5 Italy 2 4.3%
6 Japan 2 4.3%
7 Netherlands 2 4.3%
8 Australia 2 4.3%
9 Thailand 1 2.1%
10 Hong Kong 1 2.1%