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 459 60.2%
2 United States 122 16%
3 Germany 50 6.6%
4 Netherlands 45 5.9%
5 Canada 25 3.3%
6 Sweden 14 1.8%
7 Taiwan 8 1%
8 France 6 0.8%
9 Singapore 6 0.8%
10 Ukraine 4 0.5%
11 United Kingdom 4 0.5%
12 Hong Kong 4 0.5%
13 India 2 0.3%
14 Ireland 2 0.3%
15 Czech Republic 2 0.3%
16 Australia 2 0.3%
17 Portugal 2 0.3%
18 Switzerland 1 0.1%
19 Austria 1 0.1%
20 Brazil 1 0.1%
21 Korea, Republic of 1 0.1%
22 Moldova, Republic of 1 0.1%