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 143 62.7%
2 United States 26 11.4%
3 Germany 23 10.1%
4 Ireland 12 5.3%
5 Taiwan 4 1.8%
6 Netherlands 3 1.3%
7 Hong Kong 3 1.3%
8 3 1.3%
9 Canada 2 0.9%
10 France 2 0.9%
11 Italy 2 0.9%
12 Korea, Republic of 2 0.9%
13 Ukraine 2 0.9%
14 New Zealand 1 0.4%