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 2398 80.9%
2 United States 252 8.5%
3 Netherlands 140 4.7%
4 Germany 68 2.3%
5 France 35 1.2%
6 Canada 16 0.5%
7 Hong Kong 9 0.3%
8 Japan 8 0.3%
9 Korea, Republic of 6 0.2%
10 Norway 5 0.2%
11 Kazakhstan 5 0.2%
12 Australia 5 0.2%
13 Sweden 3 0.1%
14 United Kingdom 3 0.1%
15 Taiwan 2 0.1%
16 Nigeria 2 0.1%
17 Finland 2 0.1%
18 Brazil 1 0%
19 Bulgaria 1 0%
20 Thailand 1 0%
21 Ukraine 1 0%
22 Poland 1 0%
23 Singapore 1 0%