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 227 63.1%
2 Germany 47 13.1%
3 United States 39 10.8%
4 Canada 31 8.6%
5 France 3 0.8%
6 Belarus 2 0.6%
7 Romania 2 0.6%
8 Russia 2 0.6%
9 Singapore 2 0.6%
10 Tajikistan 2 0.6%
11 Australia 1 0.3%
12 Ireland 1 0.3%
13 Moldova, Republic of 1 0.3%