Em hãy cho biết công lao của vua Quang Trung đối với đất nước.

giúp mik vs nha !

Câu 7. (3 điểm)

 Cho tam giác ABC cân tại A, AM là trung tuyến. Kẻ MN vuông góc với AC tại  N, MK vuông góc với AB tại K.

a. Chứng minh MN = MK 

b. Biết AB = 5cm, BC = 6cm, tính AM

c. Chứng minh AMKN

B. PHONETIC, VOCABULARY & GRAMMAR.

I. Circle the letter A, B, C or D to indicate the word that has the underlined part pronounced differently from the others.

II. Circle the letter A, B, C or D to indicate word in each line that has different stress pattern.

A movie is filmed using a camera which takes pictures at a very fast speed. The camera can take 24 pictures in one second! If it is taking pictures of somebody walking, the pictures will show the different movements of the person in that one second. Since the pictures are taken so quickly, the difference between each picture is very slight.

The pictures are developed into long strips of film which are then shown, using a film projector. As we watch, 24 pictures flash before our eyes every second. The pictures go by so fast that we cannot see each one by itself. What we see is just one picture that seems to move. Our eyes play a part by blending the pictures with each other.

* Circle the best answer A, B, or C to answer the questions:

1. How is a movie filmed?               

A. by a camera     B. by some pictures      C. by 24 seconds.

2. What is NOT TRUE about the pictures?

 A. They are taken at a very fast speed.  

 B. They are made into short film strips. 

 C. They go by very slowly.

* Write T (true) or F (false) before the sentences below.

3. ______ There is a slight different between each picture when they are taken so quickly.          ­­

4. ______ When we watch the picture flash, we can see each one by itself.                                  

My first visit to the cinema was a very unhappy one. I was (1) ____ there by some friends when I was only seven years old. At first there (2) ____ bright lights and music and I felt quite happy. When the lights went out, I felt afraid. Then I saw a train on the screen. The train was coming towards me. I was (3) ____ and got down under my seat. When my friends saw me, they started to (4) ____. I felt ashamed and sat back in my seat. I was very glad when the film ended.

B. taken                     C. took                     D. take

2. A. were                          B. are                         C. was                      D. is

3. A. horrified                    B. horrifying              C. horror                  D. horrify

4. A. laugh                         B. cry                         C. try                        D. applaud

Bài 4: Hai đoạn thẳng MN và EF  cắt nhau tại trung điểm I  của mỗi đoạn. Chứng minh rằng ME  // NF