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 56.5%
2 United States 64 20.2%
3 Germany 25 7.9%
4 Hong Kong 12 3.8%
5 Russia 5 1.6%
6 Netherlands 4 1.3%
7 New Zealand 4 1.3%
8 Korea, Republic of 4 1.3%
9 France 3 0.9%
10 Norway 3 0.9%
11 Canada 3 0.9%
12 Taiwan 3 0.9%
13 Singapore 2 0.6%
14 Australia 2 0.6%
15 Macao 2 0.6%
16 Bulgaria 1 0.3%
17 United Kingdom 1 0.3%