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 United States 313 39.1%
2 China 216 27%
3 Germany 101 12.6%
4 Netherlands 74 9.2%
5 France 53 6.6%
6 Hong Kong 19 2.4%
7 Portugal 7 0.9%
8 7 0.9%
9 Canada 3 0.4%
10 Taiwan 3 0.4%
11 Korea, Republic of 2 0.2%
12 Russia 1 0.1%
13 Australia 1 0.1%