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【判断题】
实变函数是以实数作为自变量的函数A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】假设有以下变量的定义: int x=5; float y=6.5; 计算下面各表达式的值。 ( 1 ) x+3 , y-2 ; ( 2 )( int ) y/x ; ( 3 ) x/3*y ;
【单选题】Why does the professor mention the Moon’s mantle?
A.
To explain why scientists believe that meteor impacts cannot affect the Moon’s mantle
B.
To explain what kind of information scientists hope to obtain from the mantle
C.
To point out that the Moon’s crust and mantle are made of similar materials
D.
To point out that the Moon’s mantle and Earth’s mantle have different compositions
【单选题】Why does the author use the Chinese mother's shopping experience as an example?
A.
To warn shop assistants of tough customers.
B.
To teach people how to get better service as customers.
C.
To criticize some improper shopping behavior.
D.
To show how different people's expectations of service are.
【单选题】假设有以下变量的定义: int x=5; float y=6.5; 请计算下面表达式的值为:() x+3,y-2
A.
4.500000
B.
2,4.500000
C.
8,4.500000
D.
4
【单选题】Why does the professor discuss the instruments of the orchestra for Monteverdi's opera Orfeo?
A.
To compare the Baroque orchestra with the orchestra of today
B.
To give examples of instruments that Monteverdi invented
C.
To illustrate how different instruments helped to tell a story
D.
To explain why the orchestra was the center of Baroque music
【简答题】简述女性内生殖器官都有哪些。
【简答题】Why does sunburned skin ____________ red?
【单选题】设有一联合体变量定义如下: union data {long w;float x;int y;char z;}; union data beta; 执行下面赋值语句后,正确的联合体变量beta的值是。 beta.w=123321;beta.y=88;beta.x=99.9;beta.z='A';
A.
123321
B.
88
C.
99.9
D.
'A'
【单选题】下列属于增值税兼营非应税劳务的是( )
A.
商场销售家具并实行有偿送货上门
B.
建材商店既销售建材，同时也提供装修劳务
C.
饭店提供餐饮服务并销售酒水
D.
电信部门销售手机并为客户有偿提供电信服务
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