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2020ũ^У԰Ƹԣÿһ9.22

2019-09-24 14:59:41|

ũƸṩũУũҵУƸϢʡũУ԰ƸƸѶʱΪũпũԼɼԾ顢ʱȵȣ2020ũ^У԰Ƹԣÿһ9.22𰸡ѯ绰025-85705766

66.𰸡Cӯ๫ҪҵδľӪչͶҲתɱ(ʵʱ)ֲǰȾӪӯ๫𲻵ԺȵĶ䡣

67.𰸡DǵڵľԣѡD˵ȷ

68.𰸡BȹɹƱȹɣǹ˾еͨɾһȨĹƱȨҪڹȨͷȡʣƲȨϡȹɹɶڹɶޱȨڲ빫˾Ӫܵһƣ漰ȹȨбȨ

69.𰸡Bת=۳ɱ/ƽ=1000÷[(200+300)/2]=4Ρ

70.𰸡CӦ˿תҵһʱƽӦ˿֮ȡǺҵӦ˿תٶȼЧʵָꡣ

ѯ绰025-85705766


 


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