BPG致力于知识的发现和传播
Total Visits of This Article
2023 | 总访问次数
排名 国家/地区 数量 占比
1 China 41 44.1%
2 United States 27 29%
3 Korea, Republic of 9 9.7%
4 Canada 5 5.4%
5 Netherlands 3 3.2%
6 Romania 2 2.2%
7 Switzerland 2 2.2%
8 Ukraine 1 1.1%
9 Denmark 1 1.1%
10 Estonia 1 1.1%
11 Jordan 1 1.1%