皮皮学，免费搜题
登录
搜题
【单选题】
class Tree{} class Pine extends Tree{} class Oak extends Tree{} public class Forest { public static void main( String[] args ) { Tree tree = new Pine(); if( tree instanceof Pine ) System.out.println( "Pine" ); if( tree instanceof Tree ) System.out.println( "Tree" ); if( tree instanceof Oak ) System.out.println( "Oak" ); else System.out.println( "Oops" ); } } 则输出结果中不包括A.
Pine
B.
Tree
C.
Oak
D.
Oops
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】You are going to hear a short passage. Listen and put the answer to the question in the blank. U1-P3-2 Question: What does an informal greeting really mean to American people？ Answer： .A. It means a ...
【判断题】Rose is calling her customer Ryan.Listen to the conversation and decide whether the following statements are trueor false. u07p32.mp3: (1) Rose invites Ryan to an afternoon tea party because Ryan just...
A.
正确
B.
错误
【简答题】中国茶类的划分有多种方法,根据制作方法和茶多酚氧化(发酵)程度的不同,可分为六大类:()()()()()和()。
【单选题】SECTION A CONVERSATIONS Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow. 听力原文：W: What's the problem? M:...
A.
The man is learning how to use a computer.
B.
The woman is showing the man how to put page numbers on a document.
C.
The man is printing a document.
D.
The man is using his computer to do mathematical functions.
【简答题】滚柱式单向离合器是怎样传递转矩的?
【单选题】SECTION A CONVERSATIONS Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow. 听力原文：W: What's the problem? M:...
A.
The man is learning how to use a computer.
B.
The woman is showing the man how to put page numbers on a document.
C.
The man is printing a document.
D.
The man is using his computer to do mathematical functions.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
