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【单选题】
倾斜长壁工作面两侧的回采巷道均为斜巷，仍可采用的巷道布置及掘进形式不包括A.
布置和掘进
B.
布置和掘进
C.
沿空留巷
D.
平行布置
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反馈参考答案：
举一反三
【简答题】概述果实的类型。
【单选题】Which of the following is not a reason for why purchasers are adopting a more proactive and aggressive role in the procurement process?
A.
there are myriad inefficiencies associated with suppliers initiating marketing efforts towards purchasers
B.
achieving competitive advantage in the supply chain
C.
an excess number of suppliers currently exist
D.
purchasers may be aware of important benefits that are not known to the supplier
E.
all of the above are reasons
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