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 42 42.4%
2 United States 22 22.2%
3 Germany 11 11.1%
4 France 7 7.1%
5 Korea, Republic of 4 4%
6 Taiwan 3 3%
7 Hong Kong 3 3%
8 India 3 3%
9 Canada 3 3%
10 Australia 1 1%