BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 86 52.4%
2 United States 29 17.7%
3 Netherlands 18 11%
4 Germany 9 5.5%
5 Taiwan 6 3.7%
6 Hong Kong 5 3%
7 Iran, Islamic Republic of 2 1.2%
8 France 2 1.2%
9 Australia 1 0.6%
10 Canada 1 0.6%
11 Macao 1 0.6%
12 Portugal 1 0.6%
13 Russia 1 0.6%
14 Singapore 1 0.6%
15 Sweden 1 0.6%