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 31 55.4%
2 United States 7 12.5%
3 Germany 6 10.7%
4 Canada 3 5.4%
5 Malaysia 3 5.4%
6 Taiwan 2 3.6%
7 Hong Kong 1 1.8%
8 Netherlands 1 1.8%
9 Russia 1 1.8%
10 Singapore 1 1.8%