BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 46 48.9%
2 United States 25 26.6%
3 Germany 7 7.4%
4 Hong Kong 4 4.3%
5 Taiwan 3 3.2%
6 Singapore 2 2.1%
7 United Kingdom 1 1.1%
8 Czech Republic 1 1.1%
9 France 1 1.1%
10 India 1 1.1%
11 Italy 1 1.1%
12 Korea, Republic of 1 1.1%
13 Portugal 1 1.1%