BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 82 55%
2 United States 19 12.8%
3 Netherlands 13 8.7%
4 Malaysia 11 7.4%
5 Germany 9 6%
6 Canada 3 2%
7 France 3 2%
8 Taiwan 3 2%
9 Russia 2 1.3%
10 Singapore 1 0.7%
11 Estonia 1 0.7%
12 Japan 1 0.7%
13 Moldova, Republic of 1 0.7%