Firms that use computers have found that
题型:选择题
问题:
Firms that use computers have found that the number of staff _____ is needed for quality control can be greatly reduced.
A.whose
B.as
C.what
D.that
Firms that use computers have found that the number of staff _____ is needed for quality control can be greatly reduced.
A.whose
B.as
C.what
D.that