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 73 52.1%
2 United States 30 21.4%
3 Germany 8 5.7%
4 Hong Kong 8 5.7%
5 Taiwan 5 3.6%
6 Japan 3 2.1%
7 Russia 3 2.1%
8 France 2 1.4%
9 Korea, Republic of 2 1.4%
10 Malaysia 2 1.4%
11 Morocco 1 0.7%
12 Portugal 1 0.7%
13 Sweden 1 0.7%
14 Australia 1 0.7%