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 432 48.5%
2 United States 265 29.7%
3 Netherlands 101 11.3%
4 Germany 53 5.9%
5 Canada 7 0.8%
6 France 6 0.7%
7 Hong Kong 4 0.4%
8 India 4 0.4%
9 United Kingdom 3 0.3%
10 Singapore 2 0.2%
11 Turkey 2 0.2%
12 Mexico 2 0.2%
13 Romania 2 0.2%
14 Japan 2 0.2%
15 Hungary 2 0.2%
16 Korea, Republic of 1 0.1%
17 Mauritius 1 0.1%
18 Israel 1 0.1%
19 Russia 1 0.1%