题目内容

How can the man get there?Take the elevator up to ___________.

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When you come out of the elevator, _______.

Then left. It’s the__________ on the right.

下面代码运行后的输出结果为( A )。public class X6_1_5 {public static void main(String[] args) {AB aa = new AB();AB bb;bb = aa;System.out.println(bb.equals(aa));}}class AB{ int x = 100; }

A. true
B. false
C. 编译错误
D. 100

执行语句:int[] x = new int[20];后,下面哪个说法是正确的?( )

A. x[19]为空
B. x[19]未定义
C. x[19]为0
D. x[0]为空