Her grandmother was ill yesterday and she is today.
A. very ill
B. even worse
C. the worst
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The newspaper is becoming .
A. more and more interesting
B. interesting and more interesting
C. more interesting and more interesting
Tom is of the two boys.
A. young
B. the younger
C. the youngest
以下( )不是java的特点
A. 平台无关性
B. 高可靠性和安全性
C. 指针运算
D. 分布式应用和多线程
下列关于java文件和类的关系的说法哪个是正确的( )
A. 一个java源文件就是一个用public class定义的类
B. 一个java源文件就是用class定义的类
C. 一个java源文件就是一个类,每一个类都会生成一个java源文件
D. 一个java源文件中只能有一个类