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 254 76%
2 United States 20 6%
3 Korea, Republic of 13 3.9%
4 Germany 8 2.4%
5 Hong Kong 8 2.4%
6 Netherlands 5 1.5%
7 Senegal 5 1.5%
8 Taiwan 3 0.9%
9 Ukraine 3 0.9%
10 Japan 2 0.6%
11 Russia 2 0.6%
12 Malaysia 2 0.6%
13 Turkey 1 0.3%
14 Singapore 1 0.3%
15 Sweden 1 0.3%
16 Ireland 1 0.3%
17 Albania 1 0.3%
18 Australia 1 0.3%
19 Belgium 1 0.3%
20 Canada 1 0.3%
21 United Kingdom 1 0.3%