生命周期成本(LCC Life cycle cost)是指设备或系统从诞生至报废的整个期间所需要的费用总和。它往

生命周期成本(LCC，Life cycle cost)是指设备或系统从诞生至报废的整个期间所需要的费用总和。它往往()设备购置费用。

A．相等于

B．小于

C．稍大于

D．数倍于

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