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 252 60.1%
2 United States 79 18.9%
3 Germany 32 7.6%
4 Canada 29 6.9%
5 Macao 5 1.2%
6 Singapore 4 1%
7 Taiwan 4 1%
8 4 1%
9 Australia 3 0.7%
10 Netherlands 3 0.7%
11 Romania 2 0.5%
12 Hong Kong 2 0.5%