题目内容

He waited until everyone had had a say and he had had the opportunity of thinking things over before he ______ a different view from the rest.

A. put off
B. put on
C. put forward
D. put aside

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The astronomer presented a new_____ of the beginning of the universe.

A. concept
B. conception
C. condition
D. convenience

Qi Baishi used the_____ of both Xieyi and Gongbi in his flower-and-bird paintings.

A. technology
B. technician
C. technique
D. approach

下面的说法,错误的是______。

A. 基类的引用可以指向派生类的对象
B. 基类的引用可以指向基类的对象
C. 派生类引用可以指向派生类的对象
D. 派生类引用可以指向基类的对象

下面的程序,运行结果是:主程序:public Class Test {public static void main(String args){A obj = new C();obj.hello();}}public class A {public void hello(){ System.out.println("Hello A");}public class B extends A{public void hello(){ System.out.println("Hello B");}public class C extends B{public void hello(){ System.out.println("Hello C");}

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