Trong một hội nghị học sinh giỏi, có 12 bạn nam và 10 bạn nữ. Hỏi có bao nhiêu cách chọn một bạn lên phát biểu ?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose one sentence that has the closest meaning to the root one:

  Optimists believe that life will be far better than it is today.
  
  

• Choose one sentence that has the closest meaning to the root one:

  In spite of his poverty, he led a devoted life to the revolutionary cause.
  
  

• Choose one sentence that has the closest meaning to the root one:

  They did not let me in because I was not a member of the club.
  
  

• Choose one sentence that has the closest meaning to the root one:

  Can you account for your strange behavior?
  
  

• Choose one sentence that has the closest meaning to the root one:

  Most bosses cannot put up with irresponsibility.
  
  

• Choose the best answer for the following sentence:

  There is no excuse for your __________. Think twice before you are going to say anything.
  
  

• Choose the best answer for the following sentence:

  He earned a fortune because of a painting previously _____________ as worthless, but now turning out to be very valuable.
   

• Choose the best answer for the following sentence:

  I was not ____________ to go to parties in the evening until I reached the age of eighteen.
   

• Choose the best answer for the following sentence:

  I do think that following __________ is a waste of money and time. It changes almost every day.
   

• Choose the best answer for the following sentence:

  If you don't want to be expelled, just learn to obey the school __________.