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 160 49.8%
2 United States 57 17.8%
3 Netherlands 31 9.7%
4 Germany 27 8.4%
5 Canada 15 4.7%
6 Ireland 6 1.9%
7 France 5 1.6%
8 Spain 4 1.2%
9 Singapore 3 0.9%
10 Russia 2 0.6%
11 Australia 2 0.6%
12 Austria 2 0.6%
13 Japan 2 0.6%
14 Korea, Republic of 2 0.6%
15 Hong Kong 2 0.6%
16 Taiwan 1 0.3%