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 United States 33 39.8%
2 China 30 36.1%
3 Germany 5 6%
4 Romania 2 2.4%
5 Taiwan 2 2.4%
6 United Kingdom 2 2.4%
7 India 2 2.4%
8 Malaysia 2 2.4%
9 Canada 2 2.4%
10 Mexico 1 1.2%
11 Moldova, Republic of 1 1.2%
12 Guatemala 1 1.2%