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 212 44.1%
2 United States 170 35.3%
3 Germany 35 7.3%
4 Canada 18 3.7%
5 Hong Kong 11 2.3%
6 Singapore 6 1.2%
7 United Kingdom 4 0.8%
8 Malaysia 4 0.8%
9 Australia 4 0.8%
10 Taiwan 3 0.6%
11 Thailand 2 0.4%
12 South Africa 2 0.4%
13 Russia 2 0.4%
14 Azerbaijan 2 0.4%
15 France 2 0.4%
16 Japan 2 0.4%
17 Netherlands 1 0.2%
18 Switzerland 1 0.2%