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 270 63.5%
2 United States 70 16.5%
3 Germany 38 8.9%
4 Canada 16 3.8%
5 Taiwan 6 1.4%
6 Hong Kong 5 1.2%
7 Australia 4 0.9%
8 New Zealand 3 0.7%
9 Japan 3 0.7%
10 Korea, Republic of 2 0.5%
11 Luxembourg 2 0.5%
12 Netherlands 2 0.5%
13 India 1 0.2%
14 Norway 1 0.2%
15 Russia 1 0.2%
16 Switzerland 1 0.2%