cho (o,r) , m nằm ngài (o) sao cho mo=3r là tiếp tuyến ma,mb.
chứng minh:1) m,a,o,b thuộc cùng một đường tròn
2) mo giao với ab bằng ba lần bán kính h
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Làm giúp mik với
1.WILL You (let) .LET... me know the minute you (hear).HEAR.. any news.
2. Do you understand what we (talk)..ARE TALKING..about.
3. Well, I don't think I ever (see).SEEN.. you before.
4. I (go)WENT... to meet him at the station but I didn't see him
5. The old people often think of all the things thêy (do)..DID. when they were young.
6. I (not see)..HAVEN'T SEEN. him since last night.
Peach
3. Well, I don't think I have ever (see)..seen. you before.
1,WILL HAVE
,2WILL LET
3,WILL DIE
4,GET
5,RAINY
6,IS NOY
7,WILL BE
8,COMES
1. What are you going to do if you (have) will have a holiday?
2. If i can go tomorrow, I (let) will let you know
3. If flowers don't get any water, they (die) will die
4. If i (get)get a headache, I usually take some aspirins
5. I will go to the party unless it (rain) rainy
6. She will buy the car as long as it (not be) will be too expensive
7. Everything (be) will be provided you tell the truth
8. If he (come)comes please tell him that I'll be back in a few minutes
Chia động từ trong ngoặc :
(Make) MAKING of metal, the gate is quite safe
http://apollo360.edu.vn/tieng-anh-doanh-nghiep/60-cum-dong-tu-phrasal-verbs-thong-dung-trong-tieng-anh-giao-tiep/
Bạn xem thử link này đi
Họ có giải thích kỹ nhé
1.''Please turn down the radio for me''said my mother. ->My mother asked me to turn down the radio for her
2.Thu doesn't type as fast as she did. -> Thu used to type faster than she does now
3.Do you need any ____ ?No ,thank you.
1/sure - 2/no problem - 3/thank - 4/help
4.She can't speak and hear.She is a ___ child.
1/blind - 2/deaf - 3/mute - 4/deaf - mute
5.They are going earn some money _____ the club.
1/to - 2/for - 3/by - 4/of
6.Learner should try their best ___new world.
1/learning - 2/learn - 3/to learn - 4/learned
7.The grade - eight students did their test ____ .
1/good - 2/well - 3/very good - 4/best
8.The children enjoy listening to ____ stories.
1/tradition - 2/traditional - 3/tradition - 4/traditionally
9.We _____ ought to get up early to prepare our breakfast
.1/us - 2/we - 3/ ours - 4/ourselves
10.Bell started _____ with way of transmitting speech over a long distance.
1/experimen - 2/experimenting - 3/experiments - 4/experimented
11.The Earth ____ around the sun.
1/goes - 2/rises - 3/sets - 4/go
12.If someone doesn't put the coal in,the fire will go out. -> Unless someone puts the coal in,the fire will go out. -
13.Although his leg was broken,he managed to get out of the car.-> In spite of his in spite of his broken leg,he managed to get out of the car.
14.The girl is very friendly.She lived next door to us. -> The girl who The girl who lived next door to us is very friendly
15.The candidates mustn't __bring__(bring)books into the examination room.
16.When my mother came home from work,I __was cooking__(cook)dinner.
17.he__the hall when a stranger___
A.left- was coming B.was leaving-came C. has left-was coming D.has been leaving-came
18.I__ you the keys to the car as long as you__ the speed.
A.will give-won't exceed B. give-won't exceed C.will give-don't exceed D. give-don't exceed
19."Can you help me wash the dirty dishes?" said Tim. Tim asked me to wash the dirty dishes
20.This book is the least interesting I've ever read.=> I have never read such a boring/ uninteresting book this
1.I don't blame you for not.....outside in this awful weather.
A.wanting to go
B.wanting go
C.to want going
D.want to go
2.Please remember......your hand during the test if you have a question.
A.raising
B.to raise
C.raise
D.having raised
3.I was enjoying that book,but I stopped..........a programme on TV.
A.reading to watch
B.to read to watch
C.reading watching
D.reading for to watch
4.The skiers would rather........through the mountains than go by bus.
A.to travel by train
B.travel by train
C.traveled by train
D.traveling by train
5.I don't remember....to front door when I left home
A.to lock
B.lock
C.locked
D.locking
6.Iam afraid of...............about my personal secrets.
A.talking
B.talked
C.being talked
D.being talking
7.Peter's father ordered.....not to stay out late again.
A.him
B.to him
C.that he
D.for him
8.I hope you don't mind my......so late at night.
A.telephoning
B.to telephone
C.telephone
D.to have telephoned
9.It took three and half hours...........to Singapore.
A.to fly
B.flying
C.to be flown
D.fly
Choose the best answer.
1.I don't blame you for not.....outside in this awful weather.
A.wanting to go
B.wanting go
C.to want going
D.want to go
2.Please remember......your hand during the test if you have a question.
A.raising
B.to raise
C.raise
D.having raised
3.I was enjoying that book,but I stopped..........a programme on TV.
A.reading to watch
B.to read to watch
C.reading watching
D.reading for to watch
4.The skiers would rather........through the mountains than go by bus.
A.to travel by train
B.travel by train
C.traveled by train
D.traveling by train
5.I don't remember....to front door when I left home
A.to lock
B.lock
C.locked
D.locking
6.Iam afraid of...............about my personal secrets.
A.talking
B.talked
C.being talked
D.being talking
7.Peter's father ordered.....not to stay out late again.
A.him
B.to him
C.that he
D.for him
8.I hope you don't mind my......so late at night.
A.telephoning
B.to telephone
C.telephone
D.to have telephoned
9.It took three and half hours...........to Singapore.
A.to fly
B.flying
C.to be flown
D.fly