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 46 42.2%
2 United States 17 15.6%
3 France 12 11%
4 Netherlands 12 11%
5 Russia 9 8.3%
6 Germany 5 4.6%
7 Hong Kong 2 1.8%
8 Switzerland 2 1.8%
9 Australia 1 0.9%
10 Sweden 1 0.9%
11 Czech Republic 1 0.9%
12 Viet Nam 1 0.9%