消费者对各种产品评价标准应达到的最低水平作出了规定,只有所有属性均达到了规定的最低要求,该产品才会被作为选择对象,这体现了消费者决策的那种规则( )
Goods are carried by several of transport--on road or rail, by sea or air.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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