【填空题】【消耗次数:1】
设H是群G的子群,左陪集aH={ }。[填空1]
参考答案:
复制
纠错
相关题目
【判断题】 设H是群G的子群,则每一右陪集Ha与H之间存在一个双射。
①  正确
②  错误
【单选题】 设 H 是群 G 的子群, x∈G, 令xHx-1={xhx-1|h∈H},则 xHx-1 有性质:
①  是代数不是半群;
②  是半群不是独异点;
③  是独异点不是群;
④  是 G 的子群。
【判断题】 如果群G是可换群,则群G的每个子群都是正规子群。
①  正确
②  错误
【判断题】 设〈G,°〉是一个群.若存在从〈G,°〉到〈H,*〉的满同态,则〈H,*〉也构成群。
①  正确
②  错误
【简答题】 若文法 G 定义的语言是无限集,则文法G必然是[填空1]。
【判断题】 设 G 为群, 则G具有消去律。
①  正确
②  错误
【单选题】 设 G 为群, 若x∈G 有 x2=e,则G具有性质:
①  等幂律;
②  交换律;
③  分配律;
④  有零元。
【简答题】 文法G1(S),它的产生式为:S→a|∧|(T),T→T,S|S。①消去G1的左递归。②写出非终结符的FIRST集与FOLLOW集。③构造它的分析表
【单选题】 设 G 为群, 且存在 a∈G, 使得 G={ak|k∈R},则G不具有性质:
①  结合律;
②  交换律;
③  分配律;
④  有幺元。
【简答题】 判断公式“xy(F(x) ùG(y) ?H(x,y))”的类型:[填空1]
随机题目
【单选题】 He was ____ in his work and didn’t hear me come in.
①  critical
②  logical
③  typical
④  absorbed
【单选题】 In English some surnames ____ occupations or people. ?
①  deserve ?
②  desire ?
③  design ?
④  describe?
【单选题】 18. At thirty-three he ____ the chance of a new start in computer business.
①  declared
②  lifted
③  spared
④  seized
【单选题】 Peter: It’s such a nice warm day. I think I’ll go out for a walk. Dave: ____
①  It is warm to take a walk.
②  Yes. It is warm today.
③  I’d like to join you.
④  Yes. Everybody likes this weather.
【单选题】 5. ____ the bad storm Tom delivered the newspapers on time.
①  In favor of
②  In spite of
③  In front of
④  In charge of
【单选题】 Was it until the1990s ____ the old man finally got a house of his own?
①  when
②  that
③  which
④  how
【单选题】 ____ the math problem is difficult, Ill try very hard to work it out.
①  Though
②  When
③  Before
④  After
【单选题】 When you meet someone who ____ deeply about something, you probably will want to ask them why they do so.?
①  absorbs ?
②  cares ?
③  considers ?
④  minds?
【单选题】 Theory is based on practice and in____ serves practice.
①  turn
②  tone
③  tune
④  practice
【单选题】 When I got there, Henry ____ to the hospital.
①  had been sent
②  would send
③  was sent
④  would be sent