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 224 52.3%
2 United States 121 28.3%
3 Germany 49 11.4%
4 Singapore 10 2.3%
5 Taiwan 5 1.2%
6 Netherlands 5 1.2%
7 Russia 3 0.7%
8 Canada 3 0.7%
9 Australia 2 0.5%
10 Hong Kong 2 0.5%
11 Viet Nam 2 0.5%
12 Ukraine 1 0.2%
13 Ireland 1 0.2%