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 984 86.1%
2 United States 82 7.2%
3 Germany 39 3.4%
4 Canada 9 0.8%
5 Malaysia 8 0.7%
6 Nigeria 3 0.3%
7 Russia 3 0.3%
8 Taiwan 2 0.2%
9 Ukraine 2 0.2%
10 Netherlands 2 0.2%
11 France 2 0.2%
12 Hong Kong 2 0.2%
13 India 1 0.1%
14 Japan 1 0.1%
15 Viet Nam 1 0.1%
16 Thailand 1 0.1%
17 Singapore 1 0.1%