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举一反三
【多选题】下列属于物流系统中存在的制约或称权衡关系的有 ()
A.
物流服务和物流成本之间
B.
构成物流服务子系统功能之间
C.
构成物流成本的各个环节费用之间
D.
构成物流成本的各个环节费用之间
E.
仓储费用和运输费用之间
【多选题】关于围护结构权衡判断的描述正确的有( )
A.
使用时对围护结构热工参数没有任何前提条件限制
B.
使用时对围护结构热工参数有前提条件限制
C.
以模拟计算的建筑能耗值为判断依据
D.
是实际产生的建筑能耗值为判断依据
【单选题】The topic of cloning has been a politically and ethically controversial one since its very beginning. While the moral and philosophical aspects of the issues are entirely up to the interpretation of t...
A.
argue in favor of one side on a particularly controversial topic of cloning.
B.
display both sides’ arguments on another contentious issue in cloning.
C.
redirect the readers’ attention to the previously raised issue of ethics in cloning.
D.
provide further relevant information to the evaluation of cloning as a preservation technique.