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 157 54.3%
2 United States 61 21.1%
3 Germany 33 11.4%
4 Canada 15 5.2%
5 Hong Kong 8 2.8%
6 Taiwan 5 1.7%
7 Senegal 2 0.7%
8 Malaysia 2 0.7%
9 Norway 2 0.7%
10 Australia 2 0.7%
11 France 1 0.3%
12 Pakistan 1 0.3%