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nb26. The passage mainly discusses __________.
A. tidal waves B. tides C. tsunamis D. storms
vd27. All of the following is true about tidal waves EXCEPT __________.
A. they are as another name for tsunamis
B. they are caused by sudden changes in high and low tides
C. this term is not used by the scientists
D. the name refer to the same phenomenon as seismic sea waves
vd28. The word ʻthemʼ in the passage refers to __________.
A. tidal waves B. tsunamis C. storm surges D. sea waves
th29. The word “shallow” in the passage mostly means __________.
A. not clear B. tidal C. coastal D. not deep
vd30. It can be understood from the passage that tsunamis __________.
A. cause severe damage in the middle of the ocean
B. generally reach heights greater than 40 meters
C. are far more dangerous on the coast than in the open ocean
D. are often identified by ships on the ocean
Ta có:
\(\hept{\begin{cases}ab=q\\a+b=p\end{cases}}\)và \(\hept{\begin{cases}cd=s\\c+d=r\end{cases}}\)
\(M=\frac{2\left(abc+bcd+cda+dab\right)}{p^2+q^2+r^2+s^2}=\frac{2\left(qc+sb+sa+qd\right)}{p^2+q^2+r^2+s^2}\)
\(=\frac{2\left(qr+sp\right)}{p^2+q^2+r^2+s^2}\le\frac{2\left(qr+sp\right)}{2\left(qr+sp\right)}=1\)
Với M = 1 thì \(\hept{\begin{cases}q=r\\p=s\end{cases}}\)
Tới đây thì không biết đi sao nữa :D
thôi bỏ bài này đi cũng được vì chưa tới lúc cần dung phương trình
1.What are Nick’s favourite actors?
________Nick's favourite actors are Daniel Craig and Halle Berry____________
2.Where does Daniel Craig come from?
__________Daniel Craig comes from Britian. ___________________________________
3. What kinds of films has he played?
________He has played in a lot of different kinds of films including action adventure, science fiction, and romantic drama._____________________________
4. What is his role in Tomb Raider?
_______His role in Tomb Raider is Alex We. ________________________________
5.What Daniel Craig’s film does Nick like best? Why?
_____Nick likes Casino Royale best. Because he thinks Daniel Craig is a fantastic James Bond. _______________________
6.Where does Halle Berry come from?
___________Halle Berry comes from America._________________________________
7.What was her job before she became an actress?
_______She was a model before she became an actress________________________
8.Why does Nick like Halle Berry?
_________Because she is beautiful.__________________________________________
9.What Halle Berry’s film does Nick like best?
_______ Halle Berry’s film Nick like best is X-Men._____________________________
10.What is her role in that film?
Her role in that film is the main character Storm.
They're Daniel Craig and Halle Berry.
He comes from Britain.
He’s been in a lot of different kinds of films including action adventure, science fiction, and romantic drama.
He was brilliant in Tomb Raider.
It is Casino Royale because he think Daniel Craig is a fantastic James Bond.
She comes from America.
She was a model.
Because she’s beautiful.
It's X-Me.
She plays the main character Storm, who has the ability to change the weather.
A. Choose the best answer A, B, C or D to complete the sentences:
1.The passage mainly discusses __________.
A.tidal waves B.tides C.tsunamis D.storm surges
2. The word "they" in line 5 refers to __________.
A. tides B. seismic sea waves C.storm surges D.scientists
B. Answer the questions:
1. What are Tsunamis?
They are giant sea waves.
2. Are Tsunamis the same as storm surges?
No, they aren't
3. When do tsunami waves increase in height up to 40 meters?
It is when they hit the shallow waters near the coast
A. Choose the best answer A, B, C or D to complete the sentences:
1.The passage mainly discusses __________.
A.tidal waves B.tides C.tsunamis D.storm surges
2. The word "they" in line 5 refers to __________.
A. tides B. seismic sea waves C.storm surges D.scientists
B. Answer the questions:
1. What are Tsunamis?
Tsunamis are giant sea waves.
2. Are Tsunamis the same as storm surges?
No, they aren't. They are quite different from storm surges.
3. When do tsunami waves increase in height up to 40 meters?
It is when they hit the shallow waters near the coast.
