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 155 56.2%
2 Germany 45 16.3%
3 United States 44 15.9%
4 Canada 17 6.2%
5 Singapore 5 1.8%
6 Turkey 2 0.7%
7 Pakistan 2 0.7%
8 Netherlands 2 0.7%
9 France 2 0.7%
10 Hong Kong 1 0.4%
11 Norway 1 0.4%