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 175 58.5%
2 United States 66 22.1%
3 Germany 30 10%
4 Hong Kong 7 2.3%
5 Taiwan 5 1.7%
6 Korea, Republic of 3 1%
7 Malaysia 3 1%
8 Australia 3 1%
9 France 2 0.7%
10 Japan 2 0.7%
11 United Kingdom 2 0.7%
12 Belgium 1 0.3%