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【简答题】
结合首字母提示完成短文。 Mark Twain is a 1 American writer. One day, he wanted to go to Dijon by train. He was very tired, so when he was on the train, he asked the conductor to w 2 him up when they arrived in Dijon. He told him that he was a very h 3 sleeper, and if he couldn't wake him up, just to keep on trying. Then Mark Twain went to sleep. When Mark Twain woke up, he was a 4 in Paris. He was very angry. The conductor had made a mistake and put another American i 5 of Mark Twain off the train in Dijon.
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【简答题】下面程序是用来打印九九乘法表的,请填空。 Dim i As Integer, j As Integer, Strl $ Strl =' ' For i = 1 To 9 For j = 1 To 9 If【 】Then Strl =Strl +Str$ (j) +' x' +Str$ (i) +' =' +Str$ (Val(i*j)) Else Strl = Strl & Chr( 13 ) 【...
【单选题】已知文法G[A]: A →aa | aaB | bb | bbD B →aa | aaB D →bb | bbD 该文法的V T 集= ( 1 ) ,文法的V N 集= ( 2 ) 。其中第1个空填写内容为:
A.
{aa,bb}
B.
{a,b}
C.
{a,b, ε }
D.
{B,D}
E.
{A,B,D}
【单选题】为了确保神州七号飞船发射时的信息安全,信息须加密传输,发送方由明文→密文(加密),接受方由密文→明文(解密),已知加密的方法是:密码把英文的明文(真实文)按字母分解,其中英文的a,b,c,…,z的26个字母(不论大小写)依次对应1,2,3,…,26这26个自然数(见下表): a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 ...
A.
love
B.
live
C.
move
D.
life
【单选题】已知文法G[E]: E→T|E+T|E-TT→F|T*F|T/FF→(E)|I 该文法的句型T+T*F+I的最左素短语为__(1)__,句柄为__(2)__。 空白(1)处应选择()
A.
句型中第一个T
B.
T+T
C.
I
D.
T*F
【单选题】已知文法G[A]: A →aa | aaB | bb | bbD B →aa | aaB D →bb | bbD 该文法的V T 集= ( 1 ) ,文法的V N 集= ( 2 ) 。其中第2个空填写内容为:
A.
{aa,bb}
B.
{a,b}
C.
{a,b, ε }
D.
{B,D}
E.
{A,B,D}
【多选题】对于旅游者有失偏颇的不当言论,导游员应持有的态度是( )。
A.
不予纠缠
B.
有效劝阻
C.
求同存异
D.
顺其白然
【简答题】已知文法G[E]为: E→T|E+T|E-T T→F|T*F|T/F F→(E)|i 1该文法的开始符号(识别符号)是什么? 2请给出该文法的终结符号集合VT和非终结符号集合VN。 3找出句型T+T*F+i的所有短语、简单短语和句柄。
【判断题】《希波战争史》作者希罗多德被称之为历史学之父。()
A.
正确
B.
错误
【单选题】已知文法G[E]: E→T|E+T|E-TT→F|T*F|T/FF→(E)|I 该文法的句型T+T*F+I的最左素短语为__(1)__,句柄为__(2)__。 空白(2)处应选择()
A.
T*F
B.
句型中第2个T
C.
句型中第1个T
D.
I
【判断题】“债务沉淀”并非不需偿还。
A.
正确
B.
错误
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