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 19 52.8%
2 United States 8 22.2%
3 Australia 2 5.6%
4 Korea, Republic of 2 5.6%
5 Mauritius 1 2.8%
6 Moldova, Republic of 1 2.8%
7 Poland 1 2.8%
8 Russia 1 2.8%
9 Hong Kong 1 2.8%