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 179 58.9%
2 United States 70 23%
3 Germany 14 4.6%
4 Hong Kong 8 2.6%
5 Japan 8 2.6%
6 Canada 6 2%
7 Malaysia 4 1.3%
8 New Zealand 4 1.3%
9 Russia 2 0.7%
10 Spain 2 0.7%
11 Greece 2 0.7%
12 Brazil 1 0.3%
13 Korea, Republic of 1 0.3%
14 Luxembourg 1 0.3%
15 Macao 1 0.3%
16 Singapore 1 0.3%