BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 59 39.9%
2 United States 38 25.7%
3 Germany 14 9.5%
4 Hong Kong 11 7.4%
5 Taiwan 8 5.4%
6 Russia 6 4.1%
7 Malaysia 4 2.7%
8 Netherlands 2 1.4%
9 Australia 2 1.4%
10 Azerbaijan 1 0.7%
11 Portugal 1 0.7%
12 Japan 1 0.7%
13 Korea, Republic of 1 0.7%