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 96 36.9%
2 China 86 33.1%
3 France 12 4.6%
4 Netherlands 11 4.2%
5 Sweden 10 3.8%
6 Russia 9 3.5%
7 Korea, Republic of 5 1.9%
8 India 5 1.9%
9 Germany 4 1.5%
10 Hong Kong 4 1.5%
11 Canada 3 1.2%
12 Slovenia 3 1.2%
13 Romania 3 1.2%
14 Moldova, Republic of 2 0.8%
15 Mauritius 1 0.4%
16 Poland 1 0.4%
17 Argentina 1 0.4%
18 Ireland 1 0.4%
19 Japan 1 0.4%
20 Switzerland 1 0.4%
21 Ukraine 1 0.4%