19. Let A, B, C, and D be numbers. Given a postfix expression:
AB+CA-*D+ABC+-/
 What is the corresponding infix expression?
(A) ((A+B)*(C-A)+D)/(A-(B+C))
(B) ((A+B*C)-A+D)/(A-(B+C))
(C) ((A+B)*(C-A))((D+A)-(B+C))
(D) (A*(B+C)-A)+(D+A-B)/C
(E) A*(B-(C+A))+D+A-B/C

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統計: A(1), B(0), C(2), D(0), E(0) #2826214

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#5315176


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