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 240 61.5%
2 United States 69 17.7%
3 Germany 36 9.2%
4 Canada 16 4.1%
5 Netherlands 5 1.3%
6 Malaysia 3 0.8%
7 Taiwan 3 0.8%
8 Norway 2 0.5%
9 Pakistan 2 0.5%
10 Russia 2 0.5%
11 Singapore 2 0.5%
12 France 2 0.5%
13 Ireland 2 0.5%
14 Japan 2 0.5%
15 Hong Kong 1 0.3%
16 India 1 0.3%
17 Brazil 1 0.3%
18 New Zealand 1 0.3%