[<BR>]LIM , 0, LIM 0, 0 , 0

1. - DE THI HOC KI 2SAN TRON
DE THI HOC KI 2SAN TRON

1.2 2.3 n n ( 1)

 

5

1

A. 1 B. 1

6

6 D.

2 C.

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lim , 0, lim 0, 0 , 0 .