以中子和地层的相互作用为基础的测井方法是()。
A.伽马测井
B.中子测井
C.核磁测井
D.声成像测井
参考答案:B
They said Lily’s work was equal to ___ of a student who had completed four years of college.
A.it
B.this
C.that
D.One
臂丛牵拉试验阳性见于颈椎病的哪型
A.神经根型
B.脊髓型
C.椎动脉型
D.交感型
E.混合型