Hợp chất hữu cơ X tác dụng vừa đủ với NaOH trong dung dịch theo tỉ lệ mol n_X : n_NaOH = 1 : 2, thu được dung dịch Y gồm muối ăn, ancol etylic, và muối natri của glyxin. Phân tử khối X là

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• Mark the letter A, B, C or D on your answer sheet to indicate the sentences that is closest in meaning to the given sentence in each of the following questions:   

  If only I had taken that job in the bank.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  They believe a single gunman carried out the attack.      

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  "I'm sorry. I didn’t do the homework." said the boy.      

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:  

  "It can't be Mike who leaked the document, it might be Tom.", said our manager.        

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  When the unemployment rate is high, the crime rate is usually also high.      

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  The children couldn't go swimming because the sea was too rough.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  I can’t do the test because it is too difficult.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  Fiona has been typing the report for an hour.           

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions: 

  It is expected that tax increases will be announced in tomorrow’s budget statement.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions:

  The situation was so embarrassing that she did not know what to do.