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 41 47.1%
2 United States 14 16.1%
3 Netherlands 10 11.5%
4 Japan 5 5.7%
5 Hong Kong 4 4.6%
6 France 3 3.4%
7 Iran, Islamic Republic of 2 2.3%
8 Korea, Republic of 2 2.3%
9 Malaysia 1 1.1%
10 Germany 1 1.1%
11 Australia 1 1.1%
12 Canada 1 1.1%
13 Singapore 1 1.1%
14 United Arab Emirates 1 1.1%