BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 1959 84.2%
2 United States 195 8.4%
3 China 131 5.6%
4 Germany 22 0.9%
5 France 11 0.5%
6 Japan 2 0.1%
7 United Kingdom 2 0.1%
8 Macao 1 0%
9 Hong Kong 1 0%
10 India 1 0%
11 Australia 1 0%