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 57 41.6%
2 United States 26 19%
3 Germany 17 12.4%
4 Netherlands 15 10.9%
5 France 7 5.1%
6 Singapore 6 4.4%
7 Hong Kong 3 2.2%
8 Spain 2 1.5%
9 Australia 2 1.5%
10 United Kingdom 1 0.7%
11 Moldova, Republic of 1 0.7%