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 63 54.3%
2 United States 20 17.2%
3 Netherlands 17 14.7%
4 Germany 5 4.3%
5 Canada 4 3.4%
6 Korea, Republic of 3 2.6%
7 South Africa 2 1.7%
8 Russia 1 0.9%
9 Australia 1 0.9%