Thủy phân hoàn toàn 8,68 gam tetrapeptit mạch hở X (được tạo nên từ ba α-amino axit có công thức dạng H₂NC_nH_2nCOOH) bằng dung dịch NaOH dư, thu được 14,36 gam muối. Mặt khác thủy phân hoàn toàn 8,68 gam X bằng dung dịch HCl dư, thu được m gam muối. Giá trị của m là

A. 16,68.

B. 14,52.

C. 23,04.

D. 10,48.

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges
  - John : “What kind of job would you like?

- Tim : “___________”.

A. No, thanks

B. I heard it was very good

C. Anything to do with computers

D. Anytime after next week

The White House has recently announced that President Donald Trump and North Korea's supreme leader Kim Jong-un will hold a second _______ near the end of next month. 

A. summit 

B. climax 

C. gathering 

D. appointment 

Một máy phát điện xoay chiều một pha có 8 cặp cực tạo ra dòng điện xoay chiều với tần số 50 Hz. Tốc độ quay của rôto máy phát là

A. 375 vòng/phút

B. 400 vòng/phút

C. 6,25 vòng/phút

D. 40 vòng/phút

Cho hàm số y = f(x) liên tục trên ℝ , có đồ thị như hình vẽ.

Các giá trị của tham số m để phương trình  4 m 3 + m 2 f 2 x + 5 =   f 2 x   +   3  có 3 nghiệm phân biệt là?

A.  m   =   ± 37 2

B. m   = 37 2

C. m   =   ± 3 3 2

D. m   =   3 2

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Simply being bilingual doesn’t qualify someone to interpret. Interpreting is not only a mechanical process of converting one sentence in language A into the same sentence in language B. Rather, it’s a complex art in which thoughts and idioms that have no obvious counterparts from tongue to tongue _ or words that have several meanings must be quickly transformed in such a way that the message is clearly and accurately expressed to the listener.

At one international conference, an American speaker said, “You can’t make a silk purse out of a sows ear”, which meant nothing to the Spanish audience. The interpretation was, “A monkey in a silk dress is still a monkey” - an idiom the Spanish understood and that expressed the same idea.

There are 2 kinds of interpreters, simultaneous and consecutive. The former, sitting in a separated booth, usually at a large multilingual conference, speaks to listeners wearing headphones, interpreting what a foreign language speaker says actually a sentence behind. Consecutive interpreters are the ones most international negotiations use. They are employed for smaller meetings without sound booths and headphones. Consecutive interpretation also requires two-person teams. A foreign speaker says his piece while the interpreter, using a special shorthand, takes notes and during a pause, tells the client what was said

What is the purpose of the passage?

A. To differentiate between simultaneous and consecutive interpreters

B. To state the qualifications of an interpreter

C. To point out the importance of an interpreter

D. To explain the scope of interpreting