未知题型 A school bus has 10 double seats in each of 2 rows. Two students can sit in each double seat. If an empty bus starts out and makes two stops, picking up three times the number of students at the second stop as at the first stop, and if the bus is then filled to seating capacity, how many students got on the bus at the second stop?E.30
判断题 一个机械结构只能建立一个装配尺寸链
未知题型 If B is the midpoint of line segment AD and C is the midpoint of line segment BD, what is the value of AB/AC?E.1/4
单项选择题 在印象形成中,()会在短时间内被个体关注。A、性别信息B、外形外貌C、身份角色信息D、价值观E、内在能力
未知题型 提高自主创新能力,建设创新型国家,是我国国家发展战略的核心,实施这一战略,需要加快实施国家中长期科技发展规划纲要,大力鼓励和提倡自主创新;深化科技体制改革,发挥企业在技术创新和创业投资发展过程中的主体作用;做强做大装备制造业;支持和推进高新技术的研发和产业化,发展高新技术产业群,创造新的社会需求;继续实施科教兴国战略,人才强国战略和知识产权战略。建设创新型国家的核心是( )。D.体制