Page 20 - Sach HDDL Phia Bac 2021

*+ !"!# $#% &'#%()&'###!"#$%!"&#$%'((&#)*+,

!!!!!!!!!!!!!!!!!!!!!!!!"# $!% &'!()$! *! +&'!, -!./0&'!,- &!$ 89+!.# $#!()$! *!./0&'! *!6:-!;#<&!= ;!> &'3! $!1&#!2 3!# !#4&'!$ +!()$! *3!&'45!&+5!6 &!
!!!"#$%&'()(*(#+!,--%&)(#'!'.)--)&/!)&!0&!0&$)#&(!'#0 #?&#!.#4&#!$*$#!&'45!&+5!@#0 &'!ABC!./- D!& > .# 5!7 &'! !$*$! -!% &'
,--%&)(#!8%'')4'!)&!(2)&:;#++#+!4)-#'(%!8 12#!30*()4*'5!0!6#40()7#!%8!,--%&)(#5!)'!'()44!
%6-#+!$<=>?!-)44)%&!9#06'!0/% 4)7)&/!(%+09!)&!%$#0&'
!"!# $#% &'#%()&' < !"#$%!"&#$%'((&#)*+,
! " # $% #&'$%( )* +,- ./$( 0&1 $ 23 4& $%( 056 70 80 9:8 ; !" #$%& #$'%&( )*' +*% ,'--$%*( ./ 0$/%& 123"42,"( !--'%2"*
<=>>-$"7?@ 8 > 70 1 A - 7 $ 7 7 7B-$% ; C'" D0E$ F D > $% 5'33263 /4* 5'$%1 2% "72%89*11*1 62-*3"'%*( :72,7 :/3 5'4-*1 $%1*4
0G$0 703$0 8;80 $%31 $61 H0- $% IJK 7B" & $ > <8& " H L?B>"@M -/42%* ,'%12 '%3 ,;<=> -2662'% ?*/43 /&' @#/"* A*4-2/%B;

9:8 ; F3 7/$ > 7 $05> 8;8 F-3" N"$0 C 7 A" $ 70E$ > > * A 7&1 7 !--'%2"*3 /4* /% *C %," &4'$D '5 -/42%* -'66$3, /%2-/63; E*2%&
O" 7M 8 80- F3 > 7 7B-$% $0 $% F-3" 70E$ > > $ 056 86- '%* '5 "7* -'3" *F'6F*1 -'66$3,3( "7*? /4* -'4* ,6'3*6? 4*6/"*1 "'
$0 7( N- C " 8;8 F-3" 8P$ N $%( 80:$% % $ % " C " 8;8 F-3" A 80 7& 8 62F2%& ',"'D$3( 3G$21 '4 ,$ 6* 37 "7/% "7*? /4* "' 37*66*1 3D*,2*3
061 > 8 0 $ F3 8;8 F-3" 85 C $0 8 6$0 C M Q0 $% F-3" 9:8 ; 8 3$,7 /3 "7* 62F2%& H/$ 6$3; I7* */462*3" /--'%2"*3 /DD*/4*1 1$42%&
$0 7 )& 7 0" $ 7B-$% H R?C-$ <8;80 $%31 $61 H0- $% SIK 7B" & "7* J*F'%2/% @,;K<> -2662'% ?*/43 /&'B( /%1 "7* 6/3" 3D*,2*3 12*1 '$"
$ >@( 7B-$% H0" $0 $% F-3" 8& " 8T$% 8P$ 70 1 7B-$% H0 $% 0- $% 1$42%& "7* L4*"/,*'$38A/6*'&*%* *C %, '% *F*%" @,;== -2662'%
N"$0 %" " 9B?76UL6F?-%?$ <8;80 $%31 $61 H0- $% JJ 7B" & $ >@( H0" ?*/43 /&'B :7*% 3'-* "74**8G$/4"*43 '5 "7* D6/%" /%1 /%2-/6 @-'3"
85 $ VWX %" $% F-3" $% 70 8 C 7 <$0 7 F3 H0 $% F-$%@ 7B/$ !B;" %'"/96? "7* 12%'3/$43B 3D*,2*3 '% M/4"7 :*%" *C %,";
7 A 7&1 7 O" 7M
E*2%& /96* "' 3:2- 5/3" 8 -'F2%& 9/,N:/413 9? *O*, %& :/"*4
R- H0 $ $% A " F " $06$0 U A $% 8;80 D0&$ $ 8 C3 %" 7 FT" 70?- $%1*4 &4*/" D4*33$4* 8 "7*? :*4* F*4? D'D$6/4 3*/ ,4*/"$4*3; I7*?
H" & D0 $ F 8 U 7B-$% >'" 7B $% $ 8 A" $ $/$ 9:8 ; 7!$% N $% " -/? 7/F* /F'21*1 D4*1/ '% 9? 3G$24 %& 2%N( -$,7 62N* -'1*4%
$0" & $ "M ! $% 7 $0 8;8 F-3" > 8 $%31 $61( 80:$% 8 $% 85 70 ,*D7/6'D'13;
D0&$ > 8 H0" 7B $ 80 1M
I7* %/-* P/--'%2"*P :/3 2%3D24*1 9? "7* 3D24/6 37/D* '5 "7*24
6?
5'33262Q*1 37*663(
5
&7
663(
"
&7"6?
*
'33262Q
1
37*
)-
)-
$
$
$
$
8&
8&

$

0
'$%
0

'$%
7
$
7
B
B
$%
$%
-3"
-3"

C
!/$ %#" =>>-$"7? A$7 $%& $ 7! F D C $%-3" 8& $ )-$$ 7B'$% 0 " " " 5'33262Q*1 37*663( :72,7 3'-*:7/" 4*3*-96* &7"6? ,'26*1 4/-3R

C
7'4%3 @"?D2,/66? :'4% 9? "7* M&?D /% &'1 !--'%B;
M
&?D
D
F3

"
$
$
7/
"

7
70
>

%" $% N!$% 8!&( 70 $% 8 " A"" > 7 C 70 $ =" 9 D 7/$ F3 7'4%3 @"?D2,/66? :'4% 9? "7* M&?D /% &'1 !--'%B;
="

9
C
=>>-$M
'
'

'33263(
!--'%2"*3 /4* *C,*66*%" 2%1*C 5'33263( /%1 2" 23 ' *% D'33296* "' 62%N
!--'%2"*3 /4* *C,*66*%" 2%1*C 5'33263( /%1 2" 23 ' *% D'33296* "' 62%N
5

7&

!B-$% H0-6 0#8 6 80 7 056 70 80 9:8 ; B 7 85 %"; 7B $0 7& " 8;8 "7* 4',N 6/?*4 2% :72,7 / D/4 ,$6/4 3D*,2*3 '4 &*%$3 23 5'$%1 "' "7* 4',N 6/?*4 2% :72,7 / D/4 ,$6/4 3D*,2*3 '4 &*%$3 23 5'$%1 "'

7B
"
8;
%"

7
9:8

B
85

$0
7
8
;

;
3D*,2 , &*'6'&2, -* D*42'13; L*4"/2%6? "7*? /63' 2%12,/"* -/42%*
3D*
3D*
&2,
&2,
'6'
/2%6?
L*

,2
,2
'6'
&*
&*
8
(
70

7 $%( F D ; 80%6 80:$% CG $0 $% %" $%( F-3" 9:8 ; 8& 70 70 $% 3D* ,2 , &* '6' &2, -* D* 4 2 '13; L* 4 4 " " /2%6? " 7 * ? /63' 2%12, /" * -/4 2%*

F-3"
70

&
9:8
;
$%
$%
*
5
"
7
D/3
/%
"
"
*
7*
4
D4
7*
:
"
4*
:
4
F
*
%
%
?
24
*
3*
'%-*
/
6?
123
*
"7
%
"
2%
"

$0

"6$
$0"/
$%

80' N $% 7B-$% $0 $% H0- $% 70 " %"6$ $0 7 $0M $% $0"/$ * *%F24'%-*%" 2% "7* 123"/%" D/3" :7*4* "7*? /4* D4*3*%"6? 5'$%1;'$%1;
7
7
$
$0M
%
80:$% 8P$ 80- 70 1 6 " > 80%6 80:$% $%31 $61 7B-$% Y&; H0%
80:$% $%31 $61 7B-$% Y&; H0%
A" $M
03$% 7B > 7B" & $ > 7B 8 * 7!$% F3 A" $M
16 17