耐用消费品行业属防守型行业。
参考答案:错
解析:耐用消费品行业属周期型行业。
Being rich, the young couple didn't ____ the expenses of owning a car. [ ]
A. care about
B. care for
C. have a care
D. take care of
曲线趋势延伸预测用的方程式主要有()?
A.一次曲线法
B.三次曲线法
C.二次曲线法
D.指数曲线法