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 191 59.9%
2 United States 61 19.1%
3 Germany 37 11.6%
4 Taiwan 13 4.1%
5 Hong Kong 5 1.6%
6 Russia 4 1.3%
7 Belarus 3 0.9%
8 Singapore 2 0.6%
9 Switzerland 1 0.3%
10 India 1 0.3%
11 Lao People's Democratic Republic 1 0.3%