关于子宫体癌的声像图表现，不正确的是（）。

A.早期多无异常所见

B.内膜增厚，绝经妇女内膜厚度大于4mm

C.子宫内膜呈局灶性或弥漫性均匀增厚

D.病变累及肌层时，局部内膜与肌层界限不清

E.可合并宫腔积血、积脓

There was a time_____we went to the country and stayed with the farmers there.  

A．which

B．that

C．when

D．while