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 552 54.5%
2 United States 195 19.3%
3 Netherlands 97 9.6%
4 Germany 56 5.5%
5 France 42 4.2%
6 Canada 25 2.5%
7 Hong Kong 11 1.1%
8 Taiwan 10 1%
9 Korea, Republic of 7 0.7%
10 India 3 0.3%
11 United Arab Emirates 3 0.3%
12 Thailand 2 0.2%
13 Macao 2 0.2%
14 Malaysia 2 0.2%
15 Finland 2 0.2%
16 Ukraine 1 0.1%
17 Philippines 1 0.1%
18 South Africa 1 0.1%