针对“how are you？”，下列哪项回答是合理的（）

A:How are you too! B:Good! C:Fine,thank you,And you ? D:Have a good trip!

Tom: This is my schoolmate, Mary, and this is my girl friend, Susan. Susan: How do you dol.
Mary:（）

A:How are you B:How do you do! C:Fine, thank you. D:Everything is fin

Tom: This is my schoolmate, Mary, and this is my girl friend, Susan. Susan: How do you dol.Mary:______

A:How are you B:How do you do! C:Fine, thank you. D:Everything is fine.

表达式Left("how are you",3)的值是

A:how B:are C:you D:how are you

下面程序执行后的输出结果为( )。
public class fun

public static void main(String args[])

String greets = " How are you!";
String s = greets.substring(0,3);
System.out.println(s);

A:How B:are C:you D:how are you!

下面程序执行后的输出结果为( )。
public class fun

public static void main(String args[])

String greets="How are you!";
String s=greets.substring(0,3);
System.out.println(S);

A:How B:are. C:you D:how ate you!

表达式Left("how are you",3)的值是

A:how B:are C:you D:how are you

下面程序执行后的输出结果为( )。 public class fun { public static void main(String args[]) { String greets = " How are you!"; String s = greets.substring(0,3); System.out.println(s); } }

A:How B:are C:you D:how are you!