评定结节间沟大小的最好方法是()
A．电诊断
B．X线平片
C．关节造影
D．MRI
E．超声检查
参考答案：B
The old lady her husband for forty years.
A．has married to
B．has got married to
C．has married
D．has been married to
反铲挖掘机是土方开挖中常用的一种机械，适用于（）类土。
A.I
B.Ⅱ
C.I～Ⅲ
D.工～Ⅳ
