BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 252 42.4%
2 Netherlands 167 28.1%
3 United States 135 22.7%
4 Canada 14 2.4%
5 Germany 10 1.7%
6 Italy 4 0.7%
7 Japan 3 0.5%
8 Brazil 3 0.5%
9 Bulgaria 2 0.3%
10 France 1 0.2%
11 Spain 1 0.2%
12 Switzerland 1 0.2%
13 Taiwan 1 0.2%
14 Ukraine 1 0.2%