皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
设关系模式R(ABCD)的函数依赖集F={B→C,C→D},则R的码为( )
A.
AB
B.
AC
C.
BC
D.
ABC
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】( )设计模式能够动态地给一个对象添加一些额外的职责而无须修改此对象的结构。
A.
组合(Composite)
B.
外观(Facade)
C.
享元(Flyweight)
D.
装饰器(Decorator)
【简答题】甲、乙二人储蓄我2元,乙丙二人储蓄我p元,甲、丙二人储蓄22元,四人各储蓄多少元?
【单选题】甲的父母早年离异,甲的母亲已与他人再婚,但甲时常打扰母亲的生活,并扬言如果母亲不和自己的亲生父亲复婚,就不再承担对母亲的赡养义务。对于甲的下列说法正确的是?()
A.
甲的做法可以理解,并不触犯法律
B.
甲有权干涉其母亲的婚后生活
C.
甲无权干涉母亲的生活,并仍需承担对母亲的赡养义务
D.
甲可以要求母亲与现在的丈夫离婚
【简答题】The physics meaning of differential cross section is __________________________________ _______________________________________________________________________.
【简答题】甲、乙、丙三人赛跑后,分出了一、二、三名.甲说:“我是第一”,乙说:“我是第二”,丙说:“我不是第一”,实际上有一人说了假话,那么______是第二.
【单选题】The decline of traditional religion in the West has not removed the need for men and women to find a deeper meaning behind existence. Why is the world the way it is and how do we, as conscious individ...
A.
too reactionary
B.
based on false evidence
C.
derived from inappropriate sources
D.
too subjective
【单选题】2019 年中央经济工作会议指出:结构性政策要强化体制机制建设,坚持向()要动力,深化国资国企、财税金融、土地、市场准入、社会管理等领域改革,强化竞争政策的基础性地位,创造公平竞争的制度环境,鼓励中小企业加快成长。
A.
发展
B.
创新
C.
合作
D.
改革
【单选题】Making an efficient icebox was not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was rudime...
A.
growing
B.
undeveloped
C.
necessary
D.
uninteresting
【单选题】'Our physics teacher asked a difficult question, but we all could find the answer.' The underlined word has the same meaning as the one in _______. [     ]
A.
work out
B.
catch up with
C.
look out
D.
come up with
【简答题】如果沙拉的女儿是我儿子的母亲,我是男的,我与沙拉是什么亲属关系?
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题