某工程水泥从两个地方供货,甲地供货200t,原价为240元/t;乙地供货300t,原价为250元/t。甲、乙运杂费分别为20元/t、25元/t,运输损耗率均为2%,采购及保管费率均为3%,则该工程水泥的材料基价为( )元/t。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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