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 97 41.8%
2 China 92 39.7%
3 Germany 13 5.6%
4 France 10 4.3%
5 Netherlands 4 1.7%
6 Republic of Korea 3 1.3%
7 Finland 3 1.3%
8 India 3 1.3%
9 Iran 2 0.9%
10 Korea, Republic of 1 0.4%
11 Lebanon 1 0.4%
12 Brazil 1 0.4%
13 Singapore 1 0.4%
14 Thailand 1 0.4%