题目

生产决定消费，消费对生产具有反作用。下列体现消费对生产具有反作用的是（    ）A.数字技术的发展，为人们提供了视听效果更完美的产品  B.随着收入水平的不断提高，旅游成为人们生活的一部分  C.网上购物方式不仅方便了消费者，而且降低了企业成本  D.人们对健康的关注，推动了绿色食品业的迅速发展8．在录音中你将听到一段短文及五个问题．根据短文内容及问题选择正确答案．短文及问题听两遍16．A．Seven．  B．eight．   C．nine              17．A．He often does some washing or cooking．B．Jim often helps his mother cook．C．He often plays with his sister．18．A．Yes，he is．   B．No，he isn't．   C．No，he doesn't．19．A．Because she couldn't find her mother．B．Because her box was broken．C．Because her brother didn't like to play with her．20．A．Jim did            B．Lucy did．      C．Their mother did．