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 366 46.3%
2 United States 137 17.3%
3 Netherlands 108 13.7%
4 Germany 56 7.1%
5 Korea, Republic of 40 5.1%
6 Russia 20 2.5%
7 Canada 9 1.1%
8 Ireland 9 1.1%
9 Hong Kong 8 1%
10 Australia 6 0.8%
11 India 4 0.5%
12 France 4 0.5%
13 Norway 4 0.5%
14 Taiwan 3 0.4%
15 Singapore 2 0.3%
16 South Africa 2 0.3%
17 Macao 2 0.3%
18 Barbados 2 0.3%
19 Czech Republic 2 0.3%
20 Denmark 2 0.3%
21 United Kingdom 2 0.3%
22 Mexico 1 0.1%
23 Ukraine 1 0.1%