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 188 58.4%
2 United States 70 21.7%
3 Germany 42 13%
4 Singapore 5 1.6%
5 Taiwan 3 0.9%
6 Hong Kong 3 0.9%
7 Australia 2 0.6%
8 France 2 0.6%
9 Peru 2 0.6%
10 Ukraine 1 0.3%
11 Finland 1 0.3%
12 Japan 1 0.3%
13 Latvia 1 0.3%
14 Moldova, Republic of 1 0.3%