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 203 60.4%
2 Germany 45 13.4%
3 United States 43 12.8%
4 Taiwan 19 5.7%
5 Malaysia 8 2.4%
6 Netherlands 5 1.5%
7 Canada 4 1.2%
8 Ukraine 2 0.6%
9 Hong Kong 2 0.6%
10 Finland 2 0.6%
11 Korea, Republic of 1 0.3%
12 Norway 1 0.3%
13 Singapore 1 0.3%