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 170 69.4%
2 United States 47 19.2%
3 Germany 6 2.4%
4 Hong Kong 5 2%
5 Taiwan 3 1.2%
6 Ukraine 2 0.8%
7 Japan 2 0.8%
8 2 0.8%
9 Australia 2 0.8%
10 Russia 2 0.8%
11 Singapore 1 0.4%
12 Korea, Republic of 1 0.4%
13 Malaysia 1 0.4%
14 Portugal 1 0.4%