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 47 35.1%
2 United States 46 34.3%
3 Netherlands 21 15.7%
4 Germany 10 7.5%
5 Hong Kong 5 3.7%
6 Iran, Islamic Republic of 1 0.7%
7 Macao 1 0.7%
8 Malaysia 1 0.7%
9 New Zealand 1 0.7%
10 Portugal 1 0.7%