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