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 163 57.2%
2 United States 67 23.5%
3 Germany 29 10.2%
4 Taiwan 8 2.8%
5 Hong Kong 4 1.4%
6 France 4 1.4%
7 Lao People's Democratic Republic 3 1.1%
8 Armenia 2 0.7%
9 Singapore 2 0.7%
10 Canada 1 0.4%
11 Mexico 1 0.4%
12 India 1 0.4%