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 123 63.1%
2 United States 32 16.4%
3 Germany 30 15.4%
4 Ireland 2 1%
5 Netherlands 2 1%
6 Singapore 2 1%
7 South Africa 2 1%
8 Korea, Republic of 1 0.5%
9 Moldova, Republic of 1 0.5%