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 53 59.6%
2 United States 11 12.4%
3 Netherlands 10 11.2%
4 Germany 4 4.5%
5 Taiwan 3 3.4%
6 United Kingdom 2 2.2%
7 Indonesia 2 2.2%
8 Malaysia 1 1.1%
9 Czech Republic 1 1.1%
10 France 1 1.1%
11 Russia 1 1.1%