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 131 64.9%
2 United States 32 15.8%
3 Germany 26 12.9%
4 Hong Kong 2 1%
5 Korea, Republic of 2 1%
6 France 2 1%
7 Moldova, Republic of 2 1%
8 Netherlands 2 1%
9 Russia 2 1%
10 Mauritius 1 0.5%