Cho tập hợp . Có bao nhiêu số tự nhiên gồm chữ số khác nhau được thành lập từ các chữ số thuộc ?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  announce                 office                    fasten                      hobby

• Choose the best answer for the following sentence:

  After my uncle ploughed the field, he _________ to make the soil smooth.
  
  

• Choose the best answer for the following sentence:

  Hoang: "I walked very slowly because the path was only as wide as my two boots. I wanted to have a rest but there was no where to sit"

  Binh: "You really _______________ "
  
  

• Choose the best answer for the following sentence:

  The house is on fire! Let’s call the ____________ .
  
  

• Choose the best answer for the following sentence:

  The name of the film was on the ____________ of my tongue but I couldn’t speak it out.
  
  

• Choose the best answer for the following sentence:

  When ____________________ sport?
  
  

• Choose the best answer for the following sentence:

  Playing tennis one hour a day is ____________ .
  
  

• Choose the best answer for the following sentence:

  _____________ the right sight of a person’s brain is dominant, that person is left-handed.
  
  

• Choose the best answer for the following sentence:

  When I was at secondary school, I ______________ games with my neighbor.
  
  

• Choose the best answer for the following sentence:

  What an awful day it’s been, _______________ ?