____________a.Lookatthemenu.____________b.Askforthebill(BrE)/check(AmE).____________c.Bookatable(BrE)./Makeareservation(AmE).____________d.Leaveatip.____________e.Havethemaincourse.____________f.Haveadessert.____________g.Orderastarter(BrE)/appetizer(AmE).____________h.Haveanaperitif.

（6-2）定义如下Person类，(1)处合理的代码是。 class Person { String name, department; int age; public Person(String n) { name = n; } public Person(String n, int a) { name = n; age = a; } public Person(String n, int a, String d) { ① department = d; } }

中国大学MOOC: public class Person { String name,department; int age; public Person(String n){name=n;} public Person(String n,int a){name=n; age=a;} public Person(String n, String d, int a ){ //调用2个参数的构造函数 department=d; }}

4.6 若有以下程序代码： class Person{ String name,department; int age; public Person(String n){name=n;} public Person(String n, int a){name=n; age=a;} public Person(String n, String d, int a ){ //执行此代码 } 下面那个选项可以添加到“//执行此代码”前面（ ）

下面可以正确定义2个整形变量和一个字符型变量的语句是（） A: Dim x%, y As Integer, n As String B: Dim x As Integer, y, n As String C: Dim x, y As Integer, n As String D: Dim x%, y$, n As String

给定如下代码，要在第三个构造方法的空白处填上一行代码使之能够调用第二个构造方法，这行代码应该是() class Circle{ String name,radius; int r; public Circle(String n){ name=n; } public Circle(String n,int a){ name=n; r=a; } public Circle(String n,String d,int a){ radius=d; } }

查找条件为:姓名不是 错ULL 的记录 ( ) A: WHERE 错AME ! 错ULL B: WHERE 错AME 错OT 错ULL C: WHERE 错AME IS 错OT 错ULL D: WHERE 错AME!=错ULL

Which of the following sentence is right in G major ? A: An open inner string counts as 2, the outer string counts as 5 B: An open inner string counts as 5, the outer string counts as 2 C: An open inner string counts as 2, the outer string counts as 6 D: An open inner string counts as 6, the outer string counts as 3

关于 select 语句下列说法正确的是() A: select (错ame) from table perso错: 所有记录的 错ame 字段的值 B: select (错ame) from perso错 where age=12 or 错ame="aa"; or 或者 C: select (错ame) from table perso错 where age=12; 查找 age=12 的记录的那个字段的值 D: select (错ame , age) from perso错 where age=12 a错d 错ame="aa"; a错d 并且

n.1 [c] (ame) 腌菜；泡菜；腌黄瓜2 [u] (bre) 腌菜酱；泡菜汁: ______[/u]