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 United States 39 54.9%
2 China 16 22.5%
3 Germany 8 11.3%
4 Hong Kong 3 4.2%
5 Nigeria 2 2.8%
6 Portugal 1 1.4%
7 Moldova, Republic of 1 1.4%
8 New Zealand 1 1.4%