单项选择题
A.冲洗带B.侵入带C.原状地层D.泥饼
A.182μs/mB.168μs/mC.175μs/mD.143μs/m
A.深感应、井径B.自然电位、微电极C.4米电阻率、深感应D.4米电阻率、0.25米电阻率