BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 342 76%
2 United States 51 11.3%
3 Germany 26 5.8%
4 Netherlands 13 2.9%
5 Japan 4 0.9%
6 Canada 4 0.9%
7 Korea, Republic of 3 0.7%
8 Hong Kong 2 0.4%
9 France 2 0.4%
10 Taiwan 2 0.4%
11 Switzerland 1 0.2%