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 243 56.8%
2 United States 111 25.9%
3 Germany 35 8.2%
4 Taiwan 10 2.3%
5 Russia 8 1.9%
6 France 5 1.2%
7 Hong Kong 4 0.9%
8 India 2 0.5%
9 Malaysia 2 0.5%
10 Netherlands 2 0.5%
11 Canada 2 0.5%
12 South Africa 1 0.2%
13 United Kingdom 1 0.2%
14 Nigeria 1 0.2%
15 Moldova, Republic of 1 0.2%