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 43 37.4%
2 United States 30 26.1%
3 Netherlands 13 11.3%
4 Germany 10 8.7%
5 Hong Kong 7 6.1%
6 Canada 6 5.2%
7 Czech Republic 1 0.9%
8 Ireland 1 0.9%
9 Korea, Republic of 1 0.9%
10 Portugal 1 0.9%
11 Russia 1 0.9%
12 Singapore 1 0.9%