Page 27 - Sach HDDL Phia Bac 2021

01!"#$%&' $%&!()*&+,-&%./$%&&!"#$%&'(%$)'(%&(%$*'++,-

!!!!!!!!!"#$%!& %'!(')%*!+ %*!(,-#!./&!012%*
!!!!!!!!!!"#$!%&'()!*'()&()!+',,-.!/'(#0'1'

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

!"#$%& ' %& ()*+, -./ 012%& % 3 & % / 2 4# $ 5$ / ( -./ 012%& !"# $"%&'(&' )%**#+$ ,- .,/ 0(%&' (1 *,/%2#3 &#%4 2"# .,/ 0(%&'
(#$ / #$6 % 78 9$ %&: 5&2#4&% ,&%* 6,43#4 0%2# (& 7% 89%&' :(124(/2;

;# % (# ; '8 (#$%& ' %& #1 % 1 4#< ) %& #1 % 2%& () %& '=2> ? !"# *,<#4 =%42 ,- 2"# ,>1#4)% ,& 1(2# (1 % *%4'# %/ )# )%**#+ 2"%2 (1
3 ( # 1 %
@%& A ;#B2 C%& %23> #D%# (#8%# E / (#*+ ( &F6 /944#&2*+ 91#3 -,4 4(/# /9* )% ,&; 6#(&' 1*('"2*+ (&/*( 2,<%431
GH$ I2+ J %&K"1@% L@% ;# %& (H6 ? /K C%& %23: ( &F6 %86 /. 2"# 1,92"#%12? (2 (1 -,4@#3 %*,&' 2"# &,42"<#12A1,92"#%12 B%,
%#1 $ ?1 $ #1 % #+ ( %& ()+%& &121 + % #1 % 1> A 1 /</ E $ A ( 6%&'A!(#& C#& -%9*2; !"# -%9*2 (21#*- (1 /,&1(3#4#3 %/ )#? <"(/" (1
E /# () ( &1 2 /</ 4# 1 <> E $ A ( %H%& '@% / 2 2 #D%#::: (&3(/%2#3 >+ @%&+ 1('&1? 19/" %1 2"# 1*(==(&' >#2<##& 4,/D @%11(-1
%&3 9=*( ,- 2"# 2#44%(&;
M ( ()+%& /</ ? %& /# %& / 2 #+ ( %& %H%& /#B%# '8 !(#$%& ' %&
()*+, K ( / '8 ? 3 ( (#$%& ' %& / ( %& 1 ? %& ;#!%&> / E& #)(3#&/# ,- 9=*( (1 % $"%&'(&' )%**#+$? <"(/" 91#3 2, ># %
%H%& '@% ()*+ ()@% G "% 2 #D%#: ") 1 5$2 (#"1 &12% ($6 ? N.2 %#O2 4#*% )#*+ %2 %&/(#&2 )%**#+ 194-%/# 2"%2 <%1 2"#& 9=*( #3 %&3
E % %# %& A#% /O% ' $ &1 / #D%# (#<1 / %& %# /</ () 3 $/# F"9&'G ,& 2"# 1*,=# ,- 2"# 2#44%(&; !"# @,4=",*,'+ ,- 2"# "%&'(&'
%&$ % & / $/# (% ? 1 #+ ( %& / 2 GC%& G$ 1: M ( G /#.; %.% < )%**#+ %&3 1#3(@#&2 %//9@9*% ,& -4,@ 4()#4 %&3 124#%@ 4#@%(&?
AC1 %# 3 / )2 )D2 !(#$%& ' %& ()*+, '8 /</ 3 ( () ( ( &F6 / K %*2",9'" 2"#+ %4# '4%39%**+ #4,3#3 %&3 1@#%4#3 <(2" @#; .,@#
(#$&( %& /#$6@% 3C% & 1 '8 !P2/*( 41 % ( +, K '8 E $ A ( / 2 #+ ( /,&#A1"%=#3 *(@#12,&# =#%D1 2"%2 %==#%4 ,& 2"# #3'# ,- 2"#
%& 41 % ( + /</# %&86 %26 /#' 4#+ %& QR:RRR %(3: $"%&'(&' )%**#+$ %4# 4#@&%&21 ,- %& %&/(#&2 -%9*2 194-%/#? D&,<&
2#/"&(/%**+ %1 % $2#/2,&(/ -%/#2$ A % 24%/# ,- 2#/2,&(/ %/ )(2+ 2"%2 (1
,&*+ %>,92 HI?III +#%41 ,*3;
0.; ;# % '83 ;#+%& ;#= (#@3 &1< () E1 G % 4#$ A)/ %86 %&+81
0.; ;# % '83 ;#+%& ;#= (#@3 &1< () E1 G % 4#$ A)/ %86 %&+81 ,&*+ %>,92 HI?III +#%41 ,*3;
%&C1 % (#" ST%& ")B I2+ K A ( %& (81 ?2 / %#8 UV ;#+%& /# /
%&C1 % (#" ST%& ")B I2+ K A ( %& (81 ?2 / %#8 UV ;#+%& /# /
E33#3 2, 2"# )%*9# ,- 2"# 1(2# %&3 2"# %4#% %4,9&3? >#1(3#1 2"#
"#<1 J + W%(3 QRXYZ /O% /. /H6 G $ / (#% K /H6 [1 G % \1 ( S23 E33#3 2, 2"# )%*9# ,- 2"# 1(2# %&3 2"# %4#% %4,9&3? >#1(3#1 2"#
"#<1 J + W%(3 QRXYZ /O% /. /H6 G $ / (#% K /H6 [1 G % \1 ( S23
2#@=*# ,- J9&' !4( B%,? % "#4,(/ '#%* <", (& HKIL <%1 %<%43#3 '#%* <", (& HKIL <%1 %<%43#3
4#+ %& YRR %(3 ($ 1 K / %& '8 %# %& %#H% /# %& ' /# G () "%& %# %& %#H% /# %& ' /# G () "%& 2#@=*# ,- J9&' !4( B%,? % "#4,(/
4#+ %& YRR %(3 ($ 1 K / %& '8

2"# 2*# F!"%( 6%,G? 2"#4# (1 %*1, % LII +#%41 ,*3 F.%9G 24##

()
( % /T%& %(3 (#<%&> /# %& 41 % %#1 $ (#(%& () 3/ 2 31 % ( ( 2"# 2*# F!"%( 6%,G? 2"#4# (1 %*1, % LII +#%41 ,*3 F.%9G 24##
( % /T%& %(3 (#<%&> /# %& 41 % %#1 $ (#(%& () 3/ 2 31 % (
()

M:4%/,&2,@#*,& 39=#44#%&9@N? <"(/" (1 4#/,'&(O#3 %1 % P(#2&%@Q1
I2+ J %& %.1 /#$%& A8 #$6 % 78 9$ %& %.1 )1@%&:
I2+ J %& %.1 /#$%& A8 #$6 % 78 9$ %& %.1 )1@%&: M:4%/,&2,@#*,& 39=#44#%&9@N? <"(/" (1 4#/,'&(O#3 %1 % P(#2&%@Q1
7#4(2%'# !4##; !"#+ %4# =#4=#29%* "(12,4(/ <(2 #1 ,- %** 2"# 9=1
7#4(2%'# !4##; !"#+ %4# =#4=#29%* "(12,4(/ <(2 #1 ,- %** 2"# 9=1
%&3 3,<&1 ,- 2"# B%, 6%&' R4,)(&/# (& '#%* %&3 2"# 7% 89%&'
%&3 3,<&1 ,- 2"# B%, 6%&' R4,)(&/# (& '#%* %&3 2"# 7% 89%&'
:(124(/2 (& =%4 /9*%4;
:(124(/2 (& =%4 /9*%4;

22 23