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 52 53.6%
2 United States 18 18.6%
3 Netherlands 10 10.3%
4 Canada 7 7.2%
5 France 3 3.1%
6 Malaysia 2 2.1%
7 Germany 1 1%
8 Italy 1 1%
9 Russia 1 1%
10 Singapore 1 1%
11 Thailand 1 1%