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 33 58.9%
2 United States 8 14.3%
3 Germany 5 8.9%
4 Russia 3 5.4%
5 Moldova, Republic of 2 3.6%
6 Senegal 1 1.8%
7 Australia 1 1.8%
8 Canada 1 1.8%
9 Hong Kong 1 1.8%
10 Malaysia 1 1.8%