最常见的肾脏先天性异常是（）
A.马蹄肾
B.融合肾
C.异位肾
D.双肾盂
E.孤立肾
参考答案：D
Nobody noticed the thief slip into the house because the lights happened to_______.
A．beputup
B．givein
C．beturnedon
D．goout
装载速冻蔬菜的出境集装箱必须实施熏蒸消毒。( )
