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 159 51.1%
2 United States 94 30.2%
3 Germany 31 10%
4 Canada 6 1.9%
5 Malaysia 4 1.3%
6 Taiwan 3 1%
7 India 3 1%
8 France 2 0.6%
9 Hong Kong 2 0.6%
10 Singapore 2 0.6%
11 United Kingdom 1 0.3%
12 Mexico 1 0.3%
13 Netherlands 1 0.3%
14 Brazil 1 0.3%
15 Czech Republic 1 0.3%