【单选题】【消耗次数：1】
温度表的代号是 ，压力表的代号是 。1.B 2.T 3.M 4.P
①
1,2
②
1,3
③
2,4
④
3,4
参考答案：
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相关题目
【单选题】
某管道的标注为VE0402—φ35×3.5B，请问VE是指 、04是指 、02是指 、B是指 。1、物料代号 2、 主项号 3、 管道材料代号 4、 工段号
①
1,2,4,3
②
1,3,4,2
③
2,3,4,1
④
3,4,2,1
【单选题】
假定一个类的构造函数为“B（intax，intbx）：a（ax），b（bx）{}”，执行“Bx（1，2），y（3，4）；x=y；”语句序列后x.a的值为（）
①
1
②
2
③
3
④
4
【简答题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，求交关系A∩B的值域ran(A∩B)。
【判断题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，则并关系A∪B的定义域dom(A∪B)等于：{1,2,3,4}。
①
正确
②
错误
【简答题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，则求差关系A-B。
【简答题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，则交关系A∩B等于：[填空1]
【简答题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，求差关系A-B的域fld(A-B)。
【简答题】
设 A = {1, 2=,2, 4=,3, 3=}，B = {1, 3=,2, 4=,4, 2=}，则交关系A∩B的值域ran(A∩B)等于：[填空1]
随机题目
【单选题】
I ___remember to send my mother some flowers. Its her birthday tomorrow.
①
must
②
have to
③
could
【单选题】
Ihaven got___to do this evening. Would you like to go to see a film?
①
something
②
anything
③
nothing
【单选题】
-“When shall we meet again next week?”-“______________ day is possible. It’s no problem with me.”
①
Either
②
Neither
③
Every
④
Any
【单选题】
His grandfather is very healthy. He _______drinks _______smokes.
①
both, and
②
no,but
③
either, or
④
neither, nor
【单选题】
We havent seen such a beautiful film ______.
①
since four years
②
for the past four years
③
four years ago
④
from the past four years
【单选题】
Get up! Mary. Tom has _____called you three times this morning.
①
yet
②
already
③
never
④
seldom
【单选题】
Mr. Hilton is not good at music. Neither ______his children.
①
is
②
was
③
were
④
are