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 162 76.4%
2 United States 25 11.8%
3 Germany 6 2.8%
4 Malaysia 6 2.8%
5 Russia 3 1.4%
6 Taiwan 3 1.4%
7 Hong Kong 3 1.4%
8 Korea, Republic of 1 0.5%
9 Czech Republic 1 0.5%
10 United Kingdom 1 0.5%
11 Portugal 1 0.5%