题目

It’s said that he lives in England in a _______ house with all modern ______.     A furnishing / convenience            B furnishing / conveniences     C furnished / convenience             D furnished / conveniences   答案：D在小白兔的细胞中，具有双层膜结构的是 　　  A．线粒体和核糖体          B．叶绿体和线粒体  C．高尔基体和叶绿体        D．线粒体和核膜