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 33.8%
2 United States 21 15.4%
3 Germany 18 13.2%
4 Netherlands 18 13.2%
5 Russia 10 7.4%
6 France 9 6.6%
7 Sweden 5 3.7%
8 Hong Kong 3 2.2%
9 Czech Republic 2 1.5%
10 Australia 1 0.7%
11 Belarus 1 0.7%
12 Ukraine 1 0.7%
13 Malaysia 1 0.7%