题目

The child had only      slight temperature, but the doctor regarded      illness as serious enough for      hospital treatment.     A. / ; / ; the     B. a ; / ; /      C. a ; the ; /     D. / ; the ; the 答案：C二次函数y=（x-1）2+（x-3）2与y=（x+a）2+（x+b）2的图象关于y轴对称，则（a+1）2+（1+b）2的值为（ ）A．9B．10C．20D．25