【单选题】We spent a day in the country, picking wild flowers. _____ the car full of flowers we went home. [ ]
【单选题】关于垫底,下列哪项 错误 ?( )
C.
洞虽不深,但所用充填材料对牙髓有刺激时应垫底
【单选题】硬盘的物理结构可分为外部结构和内部结构,下列不属于外部结构的是()
【简答题】The wild flowers looked like a soft orange blanket _____ the desert. A. covering B. covered C. cover D. to cover