đề thi học sinh giỏi môn sinh lớp 10 chuyên hà nội

I
t/
(uu
III:
(3.5
didnt\
Nlrfln
tlinlr niro
ilting,
sai
giiii
th(ch: lvl6i cfltr
dring
l/Sai. VSV
chia
lirrn 3
nh6rn li,r:
-Nh6nr
clrLlil cri ciiu tao'l'll.
-Nlr6nr
tidrr nhirn
(clrtra
c6 rrlrlirr chirrlr tlrr1c).
-Nlr6m
c6 nhfn chu{in
(c6
nhlin clrirrh tlifrc)
2/.Srri.
Vi
VI( klrorrg
cti

ty
tlrd.
-llSli.
l(lr0rrg tlrd
coi
VSV
lir
rrlrtirrr
Plrlin
loai cluoc; clliy ciri l;\ tlp hqp nhfrrg
SV
c6
cirng
dirc didnr
rrh6 b<i vi c6 cilng plrlrong plriip
nghiOn cu'u
ch,i'19.
.l/l)ring.
Vi trong Dl( ctr clrAt
lr\ rludng vir khOng
c6 oxy n{lnr nrcn
sF
ten
rnen rugu.
-5lSai.
Can
ct'r vio
clir-r
tnic
lhhnlr'l'U chi

c6.thd chia
Vl(
lh]rnh
VK G
rarn
Am vir VI(
E:t
nnl
tlrrtrrrg.
6/l)ring.
l-On
ttrcn rtr(tu,
liic
tic coclrnt
cldu
cldrr
bi
tdch II,
vh
clruydn
d€n chllt tmg
gi.irr
kltOtrg bdn vii';rg.
lert rrtcrr cl{irrr thi
luou bi 6
xy h<lir
klr6rrg
hoirn toirn
tao axit
l xt' l[e .

7/S:ri.
Str lr'irrlr
llrirrlr
biro tir
klr0rrg
lririi
lr\ hirrlr tlrtic
SS d
Vl(
rni lh hinh
tlrfc bio
r'0.
Cau Il/:
(4.5
diAinl
CiAi
tirich
hi€n tlldng:
M6i cfu
clfrrrg
0,75d
x 6
=
4,5d
l/Ndng
tlo
ngoiri irtitttg
"['l]
cao lron
lrorrg

rrriurg'l-B
>
nrnic
tr] trorrg
di
ra ngoiri
>
-l.|]rrrit:ltrd'cNSCcc,|iti'Plriirrcortg,try€rtsilrh >
2iNtirrg,
tl6
tron.g d
d dlit
tlng cao
so vtri
ndrrg
dfL
diclr te l;io
rrdn
nu6c ttlbOn rrgohi
klrelrg
viro
dtruc lt'otrg'fI].
Do
su thoiit
hoi
rrrtric
vfln
diOrr
la nlrtrng nudc
khong

v]ro
cltrr,rc:
rtd bir
cliip rr0rr.sr'rc
tnr',Jng cfral
-l'B
gii"rnr
cnyibi
h6o.
litilri cltrit tlttii t:ltttit
Vf(
l0rr rrrcn
liictic
bi ric clre
hoat 11,'u1g ddrrg
tlriri
nArrr
rrrcn vit
rrirrr
sui
lrlrit
rridrr
>
1-ao
viirrg
rriing
ti'€rr
nrat.
4/Dty
li

tri0rr
chrhrg
cfiy tlriOu
ltru lrtr!nlr
nerr
tri c6
rrriru-xarrh
rrlrart vi\
lrof virrg
tri0u
clrrirtg b:it
d{iuv tr,i l;i
non.
Khi
thi€ir
S
cliQp
luc
bi
plrd
houi ld
chuyCn rniru.
-5l(iap l)K
thtrlin
lui ciic
lohi vi tio
plriit
llidn
quir
nhanh

tr'en
rndt
nrrdc
goi
ld
hiel
ttrtrttg
tttroc trr3ltotr.
Sau d6 vi tiio
clrO.t
cli
nr0t cdclr
dOt
ng(.rt g0y
0 nhidri
mt
vi
carr
ki€t
ngudlt
6
xy
lror\ talr trong
nrrdc.
6/llutii tnta thoiit
trrri
nrrdc
nrunlr
'l'D
nLrdc. l'hoirt

lrtvi nrrdc ldn lron
sr.r
hfit
nrl(ic d
r0 linr
Larrg qt
TII a
xit irp
xi xfi
>
l't] lrat cllu
nrAt
sfic ciutg
giirnt'l'D
klri
Corr
V:
(3,0
clidrtt)
'r'Sd'l'l]
rlo
'l-llC
sirrh r':r lir:76tl,l24NS'l'=32'l'll
A,ZStl
"'.SO'l'l]
nrtii clo
3
'l'llio
A,IJ,C
tao ra:

I
176l24NS'l'=zl9'l'l-l
0,25c1
'r'l'drrg
sd
circ
'l'tliro
A,[J,C lir:
t()
+
3
=52
'l'B
0,25d
'r'('ioi
x lir sO'l'llA tlri
zlx
lir so'l'lliroll
O,25d
+'l'ir
cti:
x
-F
4x
-v
321-52
''Sd'l'llA
-
Q
7

nguyOrr plr{ln
2 l{irr
0,5d
'l'BlJ
=
4
x4
=
16
>nguy€n
phlin
4 liin
0,5d
'l'llc
=
32
>
rrguy0n
Phin
5 lin
0,5d