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 256 59.5%
2 United States 80 18.6%
3 Germany 32 7.4%
4 Canada 30 7%
5 Taiwan 16 3.7%
6 Hong Kong 7 1.6%
7 India 2 0.5%
8 Lao People's Democratic Republic 2 0.5%
9 Malaysia 2 0.5%
10 Korea, Republic of 1 0.2%
11 Australia 1 0.2%
12 Czech Republic 1 0.2%