如果企业所接任务只知工程类型，结构特征及建筑面积，则其材料计划需用量用（）计算。
A.平米消耗定额
B.万元定额
C.概述定额
D.概算指标
参考答案：A
Will you please tell us _______? [ ]
A. how can we use it
B. how could we use it
C. how we can use it
D. how we could use it
