()一个单位工程包括9个分部工程,是其中的分部工程
A、地基与基础
B、主体结构
C、门窗
D、建筑电气
参考答案:A, B, D
How long do you suppose ______ we applied for the job ________ we had been trained .
A.has it been since ; for which
B.is it before ; in which
C.it is when ; that
D.it is since ; for which
LTE发射机射频部分的主要需求表现在两个方面()和()。