题目内容
（请给出正确答案）
[单选题]
已知赋值语句 s=”Good Bye!”,则下列定义变量s正确的是（）
A.im s as integer
B.im s as string
C.im s as double
D.im s as long
答案
B、im s as string
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.im s as integer
B.im s as string
C.im s as double
D.im s as long
答案
B、im s as string
如果结果不匹配，请 联系老师 获取答案
更多“已知赋值语句 s=”Good Bye!”,则下列定义变量s正…”相关的问题
(Peter = P ; Sally = S)
P:Hello! This is Peter speaking______51_______，please？
S：I&39;m sorry. Professor Johnson is not here at the moment. This is his assistant ,Sally.______52______？
P：Yes. Please tell the professor that I* d like to ask for sick leave for tomorrow.
S: Sorry to hear that. May I ask______53_______with you？
P: I&39;m running a fever. I&39;ve caught a cold.
S：0h,________54_______？
P：No, not very serious, but the doctor told me to stay in bed and have good rest.
S:I see. I&39;ll___55________as soon as he comes back.
P：Thank you. Goodbye!
S：Bye!
提示：Peter给Johnson教授打电话请病假，接电话的是教授的助手 Sally。 (Peter=P；Sally=S)
P：Hello! This is Peter speaking．__________51________ ，please？
S：I’m sorry．Professor Johnson is not here at the moment．This is his assistant，Sally．________52________？
P：Yes．Please tell the professor that l’d like to ask for sick leave for tomorrow．
S：Sorry to hear that．May I ask________53________ with you？
P：I’m running a fever．I’ve caught a cold．
S：Oh，________54________ ？
P：N0，not very serious，but the doctor told me to stay in bed and have a good rest．
S：I see．I’ll________55________ as soon as he comes back．
P：Thank you．Goodbye!
S：Bye!
51_____________
53__________________________
52__________________________
55__________________________
54__________________________
请帮忙给出每个问题的正确答案和分析，谢谢！
Linda：Hello! This is Linda speaking.
Chris：Hello， Linda， this is Chris. _______66________ this Friday evening？
Linda：Yes， why？
Chris：There‘s a good concert， and I’ve got two tickets. I wonder ________67_______.
Linda：That‘s great! _________68_________？
Chris：7 o‘clock. But how about _________69__________ at 6：45？
Linda：OK. I think I can make it.
Chris：After the concert， ________70_________， shall we？
Linda：Wonderful! Why don‘t we go to a Chinese restaurant？
Chris：Why not？ OK， see you Friday.
Linda：See you then. Bye!
__________
Linda ： Hello! This is Linda speaking.
Chris ： Hello, Linda, this is Chris. 51 this Friday evening？
Linda ： Yes, why ？
Chris：There’s a good concert，and I’ve 只ot two ticketsf I wonder___52___.
Linda：That’ s great! 53 ？
Chris：7 o’clock. But how about 54 at 6:45？
Linda ：OK. I think I can make it.
Chris ：After the concert, 55 , shall we？
Linda：Wonderful! Why don’t we go to a Chinese restaurant？
Chris：Why not？ OK,see you Friday.
Linda ：See you then. Bye!
A.20和30
B.20和31
C.21和30
D.21和31
E.我不会
已知P结点是某双向链表的中间结点，试从下列提供的答案中选择合适的语句序列。
a.在P结点后插入S结点的语句序列是________。
b.在P结点前插入S结点的语句序列是________。
c.删除P结点的直接前驱结点的语句序列是________。
d.删除P结点的直接后继结点的语句序列是________。
e.删除P结点的语句序列是________。
(1) P-＞next=P-＞next-＞next;
(2) P-＞prio u=P-＞prio u-＞prio u;
(3) P-＞next=S;
(4) P-＞prio u=S;
(5) S-＞next=P;
(6) S-＞prio u=P;
(7) S-＞next=P-＞next;
(8) S-＞prio u=P-＞prio u;
(9) P-＞prio u-＞next=P-＞next;
(10) P-＞prio u-＞next=P;
(11) P-＞next-＞prio u=P;
(12) P-＞next-＞prio u=S;
(13) P-＞prio u-＞next=S;
(14) P-＞next-＞prio u=P-＞prio u;
(15) Q=P-＞next;
(16) Q-P-＞prio u;
(17) free(P) ;
(18) free(Q) ;
已知表S(学号，姓名，年龄)
SC(学号，课程号，成绩)
C(课程号，课程名，教师名)
试用SQL查询语句表达下列对教学数据库中的三个基本表S、SC、C的查询：
(1)统计有学生选修的课程门数．
(2)求选修C4课程的学生的平均年龄．
(3)求王平老师所授课程的每门课程的学生平均成绩．
(4)统计每门课程的学生选修人数（超过10人的课程才统计）．要求输出课程号和选修人数．
(5)查询姓名以WANG开头的所有学生的姓名和年龄．
A.x=1和y=1均为赋值语句
B.x=1和y=1均为关系表达式
C.x=1为赋值语句，y=1为关系表达式
D.x=1为关系表达式，y=1为赋值语句
