BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 53 42.7%
2 United States 30 24.2%
3 Germany 13 10.5%
4 France 10 8.1%
5 Korea, Republic of 6 4.8%
6 South Africa 4 3.2%
7 Canada 3 2.4%
8 New Zealand 2 1.6%
9 Senegal 1 0.8%
10 Taiwan 1 0.8%
11 Japan 1 0.8%