Dallas Hinton to Anton Shepelev:

DH> Oh, sorry -- I misunderstood your question!

I beg pardon for not making it clearer the first time.

DH> I think it's been answered, then...

By Alexander?  I will comment his answer when time permits.

DH> in  a string of nouns like that, it's permissible to use
DH> the article only for the first noun.

You have  snipped  the  dialogue  in  question,  so  I  will
reinstate it and number the office names:

  Mabel Chiltern:  But  it  is  for an excellent charity: in
     aid of the Undeserving, the only  people  I  am  really
     interested  in.   I  am  (1)  the  secretary, and Tommy
     Trafford is (2) treasurer.

  Mrs. Cheveley:  And what is Lord Goring?

  Mabel Chiltern:  Oh! Lord Goring is (3) president.

Do you call  that  a  string?   The  office  name  occur  in
different  clauses, different sentences, and different lines
of dialogue.

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