题目: 寿命指标的概念:经济寿命、有效寿命、特征寿命、额定寿命。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1031/50457aae09d9f5fcaf07844c8bb26e4b.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:选择题 —Could you tell me ______ the party?—Next Friday.[ ]A. where we are going to have B. when we are going to haveC. when we were going to have 查看答案