The students quieted at once on the teacher’s () to keep them after schoolA、dangerB、warnC、threatD、saying

题目
The students quieted at once on the teacher’s () to keep them after school

A、danger

B、warn

C、threat

D、saying


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更多“The students quieted at once on the teacher’s () to keep them after school ”相关问题
  • 第1题:

    类Teacher和Student是类Person的子类;     Person p;     Teacher t;     Student s;     //p, t and s are all non-null.     if(t instanceof Person) { s = (Student)t; }   最后一句语句的结果是:()

    A.将构造一个Student对象;

    B.表达式是合法的;

    C.表达式是错误的;

    D.编译时正确,但运行时错误。


    表达式是错误的

  • 第2题:

    以下选项中哪个是Student类创建对象的正确语句?()

    A.Student s1=new Student();

    B.s1=new Student();

    C.s1=Student();

    D.Student s1=Student();


    Student s1=new Student( );

  • 第3题:

    声明并创建一个学生类Student的对象s,下列语法格式正确的是()。

    A.Student s = Student();

    B.Student s;

    C.Student s = new Student();

    D.Student s = new ();


    C

  • 第4题:

    类Teacher和Student都是类Person的子类 Person p; Teacher t; Student s; 若p,t和s都是非空值 if(t instanceof Person) { s = (Student)t; } 若默认new时声明的都是本类,这个语句导致的结果是()

    A.将构造一个Student对象

    B.表达式合法

    C.编译时非法

    D.编译时合法而在运行时可能非法


    C

  • 第5题:

    1、美音中/t/位于非重读音节的元音前时,发作不送气音。例如letter, teacher, after。


    B

  • 第6题:

    以下选项中哪个是Student类创建对象的正确语句?()

    A.s1=new Student();

    B.Student s1=new Student();

    C.s1=Student();

    D.Student s1=Student();


    AB