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 335 51.9%
2 United States 144 22.3%
3 Netherlands 72 11.2%
4 Germany 47 7.3%
5 Canada 19 2.9%
6 France 5 0.8%
7 Russia 4 0.6%
8 Bulgaria 4 0.6%
9 Australia 2 0.3%
10 Ecuador 2 0.3%
11 Hong Kong 2 0.3%
12 Korea, Republic of 2 0.3%
13 Ukraine 2 0.3%
14 Norway 2 0.3%
15 Singapore 1 0.2%
16 India 1 0.2%
17 Ireland 1 0.2%