i=10;while i>1 do i = i-1;
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Những câu hỏi liên quan
NT
1
12 tháng 5 2018
ta có :
\(A=\dfrac{10^{11}-1}{10^{12}-1}\\ 10A=\dfrac{10^{12}-10}{10^{12}-1}=1-\dfrac{9}{10^{12}-1}\\ =>10A< 1\\ B=\dfrac{10^{10}+1}{10^{11}+1}\\ 10B=\dfrac{10^{11}+10}{10^{11}+1}=1+\dfrac{9}{10^{11}+1}\\ =>10B>1\)
=> 10A<10B =>A<B
vậy A bé hơn B
12 tháng 5 2018
Bạn ơi !
Hàng thứ 2 dưới lên phải viết là : Ta có : 10A < 10B => A < B
DA
2
KL
8 tháng 1 2020
Những từ phát âm /e/ và /ei/ là:
| /e/ | /ei/ |
|
check,head,scent,met,bell,member, jealous,ready,many,breakfast. |
day,later,explain,exchange,rain, plane,wait,tasty,danger,gate. |
Chúc bạn học tốt!
H
18 tháng 2 2021
Cho các câu lệnh sau chỉ ra câu lệnh đúng:
A: for i:=1 to 10; do x:=x+1;
B: for i:=1 to 10 do x:=x+1;
C: for i:=10 to 1 do x:=x+1;
D: for i=10 to 1 do x:=x+1;
DT
Đỗ Thanh Hải
CTVVIP
22 tháng 5 2021
If there ___________ fewer cars on the road, there would be less accident. *
a.be
b are
c is
d were
I started working here 10 years ago. *
a I have worked here for 10 years.
b I haven't worked here since 10 years.
c I have started working here 10 years ago.
d I have started to work here 10 years ago.
She wouldn't go out if she _____________ the weather forecast. *
a is listening to
b listened
c listens to
d listened to
We reminded Lily___________ late for our appointment the next day. *
a not to be
b to don’t be
c to be not
d don’t be
Although the weather was cold, the fooball match was not canceled. *
a Despite of cold weather, the fooball match was not canceled.
b Inspite cold weather, the fooball match was not canceled.
c Despite being cold weather, the fooball match was not canceled.
d Despite the cold weather, the fooball match was not canceled.
The facsimile _____________by Alexander Bain in 1843. *
a invented
b has invented
c was invented
d has been invented
Choose the word whose main stressed syllable is placed differently from that of the other in each group *
a interactive
b attractive
c competitive
d activity
Choose the word whose main stressed syllable is placed differently from that of the other in each group. *
a connection
b exciting
c transitive
d impressive
Thanks to the weather forecast, many residents __________ the town before the storm swept through it. *
a had left
b will left
c have left
d left
“What about going for a walk?” said Peter. *
a Peter suggested go for a walk.
b Peter suggested going for a walk.
c Peter suggested to going for a walk.
d Peter suggested to go for a walk.
I don’t have enough time, so I can’t go on holiday this summer. *
a. If I have enough time, I can go on holiday this summer.
b. Unless I haven’t enough time, I can’t go on holiday this summer.
c. If I haven’t enough time, I can go on holiday this summer.
d. If I have enough time, I can’t go on holiday this summer.
They discussed these pollution problems last month. *
a These pollution problems were discussed last month by them.
b These pollution problems were discussed last month.
c These pollution problems was discussed last month by them.
d These pollution problems was discussed last month.
The shirt is so expensive that I can’t buy it. *
a The shirt is too expensive for me to buy.
b The shirt is too expensive for me buying it.
c It is such expensive shirt that I can buy it.
d The shirt isn’t cheap enough for me to buy it.
Choose the word whose end of /ed/ is pronounced differently from that of the others. *
a occurred
b existed
c warned
d claimed
–“Could you bring me some water?" –“___________” *
a Certainly, sir
b No, I can't
c Yes, I can
d I don't want to
Choose the word whose main stressed syllable is placed differently from that of the other in each group. *
a emigration
b introduction
c stationery
d exhibition
Choose the word whose underlined part is pronounced differently from that of the others. *
a appear
b heavy
c health
d ready
We ___________ with each other by mobile phone in 2050. *
a aren’t going to communicate
b won’t be communicating
c aren’t communicating
d haven’t communicated
The last time when I saw her was three years ago. *
a I have not seen her for three years.
b I have often seen her for the last three years.
c I saw her three years ago and will never meet her again.
d About three years ago, I used to meet her.
I ___________ soccer with my friends this time next weekend. *
a are playing
b am going to play
c was playing
d will be playing
–“Would you like a coffee?” –“___________” *
a Not at all
b Yes, let’s
c Yes, please
d Yes, I would
Most / us / use / energy. *
a Most of us use too many energy.
b Most us use too many energy.
c Most us use too much energy.
d Most of us use too much energy.
Teacher / ask / me / if / speak / English / fluent /. *
a The teacher asks me if I speak an English fluent.
b The teacher asked me if I spoke English fluently.
c The teacher asked me if do I speak English fluently.
d The teacher asks me if I can speak English fluent.
Choose the word whose main stressed syllable is placed differently from that of the other in each group. *
a interaction
b practicality
c geography
d ideology
I / hope / have / good time / together / see you soon *
a I hope we will have a good time with together and I will see you soon.
b I hope us will have a good time together. See you soon.
c I hope us to have a good time together, and seeing you soon.
d I hope we will have a good time together. See you soon.
He said he might _____________ tomorrow. *
a come
b came
c coming
d comes
Elie asked Stand___________ to look at the new catalogue. *
a if he wanted
b do you want
c did he want
d whether he wants
Lena enjoys _____________ on the phone with her friends. *
a chats
b chatted
c chatting
d chat
The teacher said we___________ a week off on the occasion of the International Labor Day. *
a would have
b didn’t have
c have
d will have
All the houses in the area_________immediately. *
a have to rebuild
b has to rebuilt
c had to rebuilt
d have to be rebuilt
Lien told me that ___________a biology teacher. *
a she wanted becoming
b she wants to become
c she will become
d she wanted to become
Don't worry! I _____________ you to solve the problem. *
a helped
b will help
c helping
d help
The boy/ old/ enough/ drive/ car *
a The boy is old enough drive a car
b The boy is enough old to drive a car
c The boy is old enough to drive a car
d The boy is old enough for drive a car
Driving on the left is very dangerous in our country. *
a It very dangerous to drive on the left in our country.
b It is very dangerous driving on the left in our country.
c It is very dangerous to drive on the left in our country.
d It is very dangerous to driving on the left in our country.
Lan asked me if I___________that exciting baseball match on TV the previous day. *
a have watched
b was watching
c had watched
d watched
She asked me if I___________a laptop computer the following day. *
a buy
b would buy
c will buy
d bought
Choose the word whose ended of /s/ is pronounced differently from that of the others. *
a rides
b leaves
c drinks
d travels
Honda motorbikes___________in Viet Nam every year. *
a will produce
b produce
c are produced
d would be produced
After three hours of considering, we have decided ___________the final decision. *
a to making
b to make
c make
d making
SY
16 tháng 3 2016
H=\(\frac{5}{28}\) + \(\frac{5}{70}\) + \(\frac{5}{130}\) +...+ \(\frac{5}{700}\)
H= \(\frac{5}{4.7}\) + \(\frac{5}{7.10}\) + \(\frac{5}{10.13}\) +...+\(\frac{5}{25.28}\)
H= \(\frac{5}{3}\) (\(\frac{1}{4}\) - \(\frac{1}{7}\) + \(\frac{1}{7}\) - \(\frac{1}{10}\) + \(\frac{1}{10}\) - \(\frac{1}{13}\) +...+ \(\frac{1}{25}\) - \(\frac{1}{28}\))
H= \(\frac{5}{3}\) (\(\frac{1}{4}\) + \(\frac{1}{7}\) - \(\frac{1}{7}\) + \(\frac{1}{10}\) - \(\frac{1}{10}\)+...+ \(\frac{1}{25}\)- \(\frac{1}{25}\) - \(\frac{1}{28}\))
H= \(\frac{5}{3}\) ( \(\frac{1}{4}\) - \(\frac{1}{28}\)) = \(\frac{5}{3}\) . \(\frac{3}{14}\)= \(\frac{5}{14}\)
sai ở chỗ:
1) i=1; đúng phải là i:=10;
2) i=i-1; đúng phải là i:=i-1;
i:=10; while i>1 do i:=i-1;