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 469 52.5%
2 Netherlands 173 19.4%
3 United States 117 13.1%
4 Germany 83 9.3%
5 Canada 13 1.5%
6 France 8 0.9%
7 Japan 8 0.9%
8 Taiwan 5 0.6%
9 Australia 3 0.3%
10 Bulgaria 2 0.2%
11 Finland 2 0.2%
12 Hong Kong 2 0.2%
13 India 2 0.2%
14 Korea, Republic of 2 0.2%
15 Norway 2 0.2%
16 Romania 2 0.2%
17 Singapore 1 0.1%