每筐苹果重9千克，有4筐，一共运苹果多少千克？
9×4=36（千克）
答：一共运苹果36千克。
A 78-year-old client with sensorineural hearing loss is admitted to a rehabilitation center after hip replacement surgery. A risk factor for this client would be
A. altered perceptions.B. toxic levels of pain medication.C. impaired cognitive function.D. impaired sense of tim
从细胞膜上提取了某种成分，用非酶法处理后，加入双缩脲试剂处理后出现紫色，若加入斐林或班氏试剂并加热，出现砖红色，该成分是[ ]
A．糖脂
B．磷脂
C．糖蛋白
D．脂蛋白
