下列程序段执行的结果为( )。
A="HELLOCANIHELPYOU"
B="WANGCHANGLI"
C=Left(A,5)十"!"
D=Right(A,7)
E=Mid(A,6,4)
F=Mid(B,Len(B)-6.5)十"!"
G=E+" "+D+"!"
H=C十" "+F
Print H+" "+G
A.HELLO!CHANG!CANIHELPYOU!
B.HELLO!WANG!CANIHELPYOU
C.HELLO!CANIHELPYOU!
D.HELLO!CHANG!CANIHELPYOU!