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 282 42.9%
2 United States 150 22.8%
3 Netherlands 93 14.2%
4 Germany 60 9.1%
5 Canada 16 2.4%
6 Taiwan 11 1.7%
7 Korea, Republic of 10 1.5%
8 Russia 7 1.1%
9 Italy 4 0.6%
10 France 4 0.6%
11 Turkey 3 0.5%
12 Ukraine 2 0.3%
13 India 2 0.3%
14 Australia 2 0.3%
15 Moldova, Republic of 2 0.3%
16 Singapore 2 0.3%
17 Sweden 2 0.3%
18 Japan 1 0.2%
19 Finland 1 0.2%
20 Hong Kong 1 0.2%
21 Hungary 1 0.2%
22 United Kingdom 1 0.2%