皮皮学，免费搜题
登录
搜题
【多选题】
关于偏序关系极大(小)元说法正确的是()。A.
孤立点既是极大元又是极
B.
极大元和极不唯一
C.
有限子集的极大元和极一定存在
D.
在哈斯图中，如果子集的某个元素不存在它的其它元素从上(下)方与其相通，则该元素就是子集的极大元(极)。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】You should read the material carefully and do the tasks as you are required.To make your driving experience in the United States safe and enjoyable, our company is providing you with this “Rules of th...
A.
65 miles per hour
B.
55 miles per hour
C.
lower than 30 miles per hour
D.
higher than 30 miles per hour
【单选题】You should read the material carefully and do the tasks as you are required.To make your driving experience in the United States safe and enjoyable, our company is providing you with this “Rules of th...
A.
put him in a child seat
B.
carry him in your arm
C.
have him sit beside you
D.
fasten him in the front seat
【简答题】关于战争指导思想,提出“我们的战略是以一当十,我们的战术是以十当一”的是()。
【简答题】在LR(0)分析法的名称中,L的含义是 ,R的含义是 ,0的含义是表示 。
【简答题】构件的______是指它包含和封装了实现系统功能的类或者其它元素的实现代码以及某些构成系统状态的实例对象。
【单选题】Cabot环形成的原因可能是
A.
红细胞内存在异常血红蛋白所致
B.
胞浆中脂蛋白变性所致
C.
血红蛋白合成过程中原卟啉与铁结合受阻所致
D.
胞核残留物
E.
有核红细胞脱核时产生
【简答题】CRH2动车组传动方式是(),牵引方式是(),()动()拖,全列分()个动力基本单元,一个基本动力单元有()牵引变压器,分布在()车,正常情况下一个牵引变压器给()个牵引变流器提供电源,全列有()个牵引变流器,分布在()车,1个牵引变流器正常情况下给()个牵引电动机提供电源
【单选题】You should read the material carefully and do the tasks as you are required.To make your driving experience in the United States safe and enjoyable, our company is providing you with this “Rules of th...
A.
people should cross the street quickly
B.
approaching vehicles must stop
C.
all vehicles must slow down
D.
police should be called in
相关题目：