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 391 46.3%
2 United States 165 19.5%
3 Netherlands 164 19.4%
4 Germany 47 5.6%
5 Hong Kong 20 2.4%
6 Canada 13 1.5%
7 Malaysia 9 1.1%
8 Singapore 8 0.9%
9 Korea, Republic of 5 0.6%
10 France 5 0.6%
11 Australia 3 0.4%
12 Taiwan 3 0.4%
13 Indonesia 2 0.2%
14 Norway 2 0.2%
15 Philippines 1 0.1%
16 Romania 1 0.1%
17 Japan 1 0.1%
18 Bulgaria 1 0.1%
19 Egypt 1 0.1%
20 United Kingdom 1 0.1%
21 Switzerland 1 0.1%
22 Viet Nam 1 0.1%