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 95 38.9%
2 United States 66 27%
3 Netherlands 22 9%
4 Germany 19 7.8%
5 Russia 9 3.7%
6 Korea, Republic of 8 3.3%
7 France 7 2.9%
8 Malaysia 3 1.2%
9 Canada 3 1.2%
10 Philippines 3 1.2%
11 Taiwan 2 0.8%
12 Norway 2 0.8%
13 Moldova, Republic of 1 0.4%
14 Hong Kong 1 0.4%
15 India 1 0.4%
16 Slovenia 1 0.4%
17 Sweden 1 0.4%