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 252 56.2%
2 United States 88 19.6%
3 Germany 34 7.6%
4 Canada 21 4.7%
5 Taiwan 13 2.9%
6 Hong Kong 8 1.8%
7 Japan 4 0.9%
8 Russia 4 0.9%
9 Macao 4 0.9%
10 Malaysia 4 0.9%
11 Singapore 3 0.7%
12 France 3 0.7%
13 Australia 2 0.4%
14 Poland 2 0.4%
15 Switzerland 1 0.2%
16 Mauritius 1 0.2%
17 Netherlands 1 0.2%
18 Cambodia 1 0.2%
19 Kazakhstan 1 0.2%
20 Luxembourg 1 0.2%