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 363 51.2%
2 United States 123 17.3%
3 Netherlands 112 15.8%
4 Germany 58 8.2%
5 Canada 17 2.4%
6 Ireland 10 1.4%
7 France 5 0.7%
8 Malaysia 3 0.4%
9 Ukraine 3 0.4%
10 Norway 3 0.4%
11 Russia 3 0.4%
12 Japan 2 0.3%
13 Korea, Republic of 2 0.3%
14 India 1 0.1%
15 Bulgaria 1 0.1%
16 Finland 1 0.1%
17 Singapore 1 0.1%
18 United Kingdom 1 0.1%