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ְķƼɹ־Ͷ巽ʽ
Northern Economy
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ڣ¿
ISSN
CN14F
أɹͺ
֣
16
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ÿƻ̽
ʱ䣺
Ϣ
5ƪ
ܱ1
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רƣۺ
רƣѧ
רƣۺ
Ϣ
Ӱӣ0.50
ۺӰӣ0.
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־лųʽеڿԴ¹۵㡢·²Ϊ⣬"ھʡƪƪɶ"ʵ۵ӱ¿ɶǿϢڶĿãùΪҵӰ־֮һòйڿйڿݿȫ¼ڿ
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