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 242 68.2%
2 United States 47 13.2%
3 Germany 35 9.9%
4 Hong Kong 10 2.8%
5 Japan 6 1.7%
6 Brazil 3 0.8%
7 Canada 3 0.8%
8 Australia 2 0.6%
9 United Arab Emirates 2 0.6%
10 Lao People's Democratic Republic 2 0.6%
11 Portugal 1 0.3%
12 Singapore 1 0.3%
13 Taiwan 1 0.3%