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 171 51%
2 United States 71 21.2%
3 Germany 31 9.3%
4 Canada 19 5.7%
5 Hong Kong 10 3%
6 Australia 6 1.8%
7 Singapore 4 1.2%
8 Korea, Republic of 4 1.2%
9 South Africa 3 0.9%
10 Japan 3 0.9%
11 2 0.6%
12 Switzerland 2 0.6%
13 Taiwan 2 0.6%
14 Romania 2 0.6%
15 United Kingdom 2 0.6%
16 Netherlands 1 0.3%
17 Turkey 1 0.3%
18 Brazil 1 0.3%