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 151 46.3%
2 United States 84 25.8%
3 Germany 37 11.3%
4 Netherlands 27 8.3%
5 Taiwan 12 3.7%
6 Korea, Republic of 6 1.8%
7 New Zealand 2 0.6%
8 Singapore 2 0.6%
9 Canada 2 0.6%
10 France 2 0.6%
11 Czech Republic 1 0.3%