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 195 52.4%
2 United States 119 32%
3 Germany 38 10.2%
4 Hong Kong 3 0.8%
5 Canada 3 0.8%
6 Ukraine 3 0.8%
7 South Africa 2 0.5%
8 Australia 2 0.5%
9 Netherlands 2 0.5%
10 Pakistan 2 0.5%
11 Romania 1 0.3%
12 India 1 0.3%
13 Taiwan 1 0.3%