BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 88 53.3%
2 United States 28 17%
3 Netherlands 19 11.5%
4 France 7 4.2%
5 5 3%
6 Sweden 5 3%
7 Korea, Republic of 4 2.4%
8 Germany 3 1.8%
9 Hong Kong 2 1.2%
10 Singapore 2 1.2%
11 Canada 1 0.6%
12 Japan 1 0.6%