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 United States 252 36.8%
2 China 229 33.5%
3 Germany 56 8.2%
4 Netherlands 44 6.4%
5 Sweden 25 3.7%
6 Hong Kong 21 3.1%
7 Korea, Republic of 19 2.8%
8 Russia 8 1.2%
9 Cote D'ivoire 7 1%
10 Canada 4 0.6%
11 Australia 3 0.4%
12 Azerbaijan 2 0.3%
13 Denmark 2 0.3%
14 India 2 0.3%
15 Ireland 2 0.3%
16 Japan 1 0.1%
17 France 1 0.1%
18 New Zealand 1 0.1%
19 Nigeria 1 0.1%
20 Romania 1 0.1%
21 Singapore 1 0.1%
22 Spain 1 0.1%
23 Taiwan 1 0.1%