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 293 64.1%
2 United States 54 11.8%
3 Canada 32 7%
4 Germany 27 5.9%
5 Netherlands 27 5.9%
6 Singapore 7 1.5%
7 Russia 3 0.7%
8 Macao 3 0.7%
9 Australia 2 0.4%
10 Hong Kong 2 0.4%
11 Luxembourg 2 0.4%
12 Taiwan 2 0.4%
13 Viet Nam 2 0.4%
14 Mexico 1 0.2%