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 184 70%
2 United States 30 11.4%
3 Germany 28 10.6%
4 Ireland 8 3%
5 Canada 4 1.5%
6 France 3 1.1%
7 2 0.8%
8 Korea, Republic of 1 0.4%
9 Moldova, Republic of 1 0.4%
10 Netherlands 1 0.4%
11 Singapore 1 0.4%