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 312 61.8%
2 United States 99 19.6%
3 Germany 27 5.3%
4 Canada 23 4.6%
5 Taiwan 14 2.8%
6 Malaysia 7 1.4%
7 Hong Kong 6 1.2%
8 Japan 5 1%
9 Netherlands 3 0.6%
10 Romania 2 0.4%
11 Macao 2 0.4%
12 Russia 1 0.2%
13 Norway 1 0.2%
14 Luxembourg 1 0.2%
15 Armenia 1 0.2%
16 France 1 0.2%