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 680 76.3%
2 United States 76 8.5%
3 Germany 41 4.6%
4 Taiwan 17 1.9%
5 Netherlands 11 1.2%
6 Hong Kong 11 1.2%
7 Japan 11 1.2%
8 Canada 11 1.2%
9 Macao 7 0.8%
10 5 0.6%
11 Singapore 4 0.4%
12 Malaysia 3 0.3%
13 Sweden 2 0.2%
14 Ukraine 2 0.2%
15 United Kingdom 2 0.2%
16 Brazil 2 0.2%
17 France 2 0.2%
18 Korea, Republic of 1 0.1%
19 Israel 1 0.1%
20 Russia 1 0.1%
21 Serbia 1 0.1%