余热锅炉主要有（）构成。 A.上下锅筒 B.对流管束 C.保温层 D.节能器 发布时间：2017-08-20 04:53 │ 来源：www.tikuol.com 题型：多项选择题 问题： 余热锅炉主要有（）构成。A.上下锅筒B.对流管束C.保温层D.节能器
题型：多项选择题 根据短文内容，用方框中所给的词填空。 discuss hopeful their wish sad health and When polite people meet their friends, they often begin 1______ conversation with a greeting and may then ask about the friend's 2______. Most of the time the conversation is cheerful. Even conversations about3______ events such as serious illness, family problems, or deaths usually end in a 4______ way. People5______ special family events such as marriages, births, graduations, new jobs and new homes. One friend will usually 6______ the other good luck or offer congratulations. If the news is unhappy, he or she will express understanding 7______ then add a hopeful suggestion. 查看答案
题型：多项选择题 对“坚持素质教育与应试教育的统一”的现实原因的分析不当的一项是( )。A．素质教育的最高目标是使全体学生的素质获得全面主动的发展。B．目前我们一方面要改造数千年形成的不合理成分，另一方面又要迎接世界新技术的挑战。C．应试是为选拔、培养精英人才来发展高科技。D．我们既要提高全体国民的素质，又要培养大批高科技人才和学术精英，二者具有同等重要的地位。 查看答案