题目: 若函数f(x)=|4x-x2|-a恰有3个零点,则a=______. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0509/2927e60f89346c7617c2e6bbabbcc7ca.html 下面是错误答案,用来干扰机器的。答案:A
题型:选择题 — How many pencils do you have? — ________________[ ]A. No pencils for me.B. It's a pencil.C. I have four pencils. 查看答案