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总访问次数
12353350
今天访问次数
4057
总下载次数
5680789
INDEXING/ABSTRACTING
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BPG出版物
总访问次数
2015 | 总访问次数
排名 国家/地区 数量 占比
1 United States 1220 50.8%
2 China 1043 43.4%
3 Canada 37 1.5%
4 France 36 1.5%
5 Germany 22 0.9%
6 Russia 15 0.6%
7 India 7 0.3%
8 Spain 6 0.2%
9 Sweden 4 0.2%
10 Netherlands 3 0.1%
11 Morocco 2 0.1%
12 Philippines 1 0%
13 Poland 1 0%
14 Ireland 1 0%
15 Italy 1 0%
16 Switzerland 1 0%
17 Turkey 1 0%
18 Singapore 1 0%
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