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 157 48.2%
2 United States 79 24.2%
3 Germany 35 10.7%
4 Canada 19 5.8%
5 Russia 6 1.8%
6 Singapore 4 1.2%
7 Malaysia 4 1.2%
8 United Kingdom 4 1.2%
9 Netherlands 2 0.6%
10 Switzerland 2 0.6%
11 Indonesia 2 0.6%
12 2 0.6%
13 Bulgaria 2 0.6%
14 Lao People's Democratic Republic 2 0.6%
15 Luxembourg 1 0.3%
16 Israel 1 0.3%
17 Japan 1 0.3%
18 Spain 1 0.3%
19 Poland 1 0.3%
20 Portugal 1 0.3%