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 162 51.9%
2 United States 63 20.2%
3 Germany 29 9.3%
4 Canada 16 5.1%
5 Hong Kong 15 4.8%
6 Malaysia 7 2.2%
7 Australia 5 1.6%
8 Russia 4 1.3%
9 Singapore 3 1%
10 Taiwan 3 1%
11 Portugal 2 0.6%
12 Switzerland 2 0.6%
13 Netherlands 1 0.3%