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 15 31.2%
2 United States 13 27.1%
3 Netherlands 5 10.4%
4 Norway 4 8.3%
5 Germany 3 6.2%
6 Hong Kong 2 4.2%
7 United Kingdom 2 4.2%
8 Malaysia 1 2.1%
9 France 1 2.1%
10 Russia 1 2.1%
11 Ukraine 1 2.1%