【单选题】________ the arrival of the police, I would have been robbed by two masked men.
D.
If it would not be for
【单选题】---What on earth are the police busy with? ---They have been looking into how the plane crash _______.
【简答题】对格式条款的理解发生争议的,应当作出不利于提供格式条款一方的解释。( )
【单选题】I wonder whether the police ______ that lost child or notA.have foundB.has been foundC.have been
A.
27. I wonder whether the police ______ that lost child or not A.have found
【单选题】一个50Hz正弦波输入全波整流器后,其输出信号的频率是()
【单选题】Two suspects have been ______ by the police for questioning.
【单选题】一个50Hz正弦输入的全波整流器的输出频率是( )
【单选题】-The police have been the area for quite a long time. -I've also noticed that. What have they been ? [ ]
B.
searching for; searching
C.
searching for; searching for
D.
searching ; searching for