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 United States 56 54.9%
2 China 17 16.7%
3 Netherlands 11 10.8%
4 Taiwan 8 7.8%
5 Malaysia 2 2%
6 Germany 2 2%
7 Hong Kong 2 2%
8 Kazakhstan 1 1%
9 Australia 1 1%
10 Singapore 1 1%
11 Switzerland 1 1%