BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 13 27.7%
2 China 12 25.5%
3 Germany 9 19.1%
4 Romania 3 6.4%
5 Taiwan 3 6.4%
6 Republic of Korea 2 4.3%
7 Bulgaria 1 2.1%
8 Singapore 1 2.1%
9 Hong Kong 1 2.1%
10 Malaysia 1 2.1%
11 Colombia 1 2.1%