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 221 48.9%
2 United States 125 27.7%
3 Germany 32 7.1%
4 Canada 31 6.9%
5 Netherlands 25 5.5%
6 Macao 4 0.9%
7 Singapore 3 0.7%
8 Spain 2 0.4%
9 Malaysia 2 0.4%
10 Brazil 2 0.4%
11 France 2 0.4%
12 Mauritius 1 0.2%
13 Taiwan 1 0.2%
14 United Kingdom 1 0.2%