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 157 42%
2 China 110 29.4%
3 Netherlands 40 10.7%
4 Germany 21 5.6%
5 France 18 4.8%
6 Russia 6 1.6%
7 Romania 4 1.1%
8 Finland 4 1.1%
9 Republic of Korea 3 0.8%
10 Ukraine 3 0.8%
11 United Kingdom 1 0.3%
12 Singapore 1 0.3%
13 Republic of Lithuania 1 0.3%
14 Chile 1 0.3%
15 Dominican Republic 1 0.3%
16 India 1 0.3%
17 Japan 1 0.3%
18 Korea, Republic of 1 0.3%