Many of the activities performed during the preliminary investigation are still being conducted in （ ）, but in much greater depth than before.
A.analysis phase B.design phase C.implementation phase D.maintenance phase正确答案A
Many of the activities performed during the preliminary investigation are still being conducted in （ ）, but in much greater depth than before.
A.analysis phase B.design phase C.implementation phase D.maintenance phase正确答案A
