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 31 43.1%
2 United States 16 22.2%
3 Netherlands 5 6.9%
4 4 5.6%
5 Canada 4 5.6%
6 Germany 3 4.2%
7 Hong Kong 3 4.2%
8 United Kingdom 2 2.8%
9 Korea, Republic of 1 1.4%
10 Macao 1 1.4%
11 Malaysia 1 1.4%
12 Singapore 1 1.4%