Cho hàm số $f\left(x\right)$ xác định trên khoảng $K$ chứa $a$ . Hàm số $f\left(x\right)$ liên tục tại $x=a$ nếu

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  He failed the exam because of the time ____________. He couldn't finish half of it.
   

• Choose the best answer for the following sentence:

  The way women's mind works is a _____________ to men. Therefore, they often misunderstand each other.
   

• Choose the best answer for the following sentence:

  We are in an unbalanced situation when women ______________ over 75% of our staff.
  
  

• Choose the best answer for the following sentence:

  In Western families, the child is often ___________ after the one his parents love most.
   

• Choose the best answer for the following sentence:

  I didn't know how to answer his question. There was a ____________ in our conversation.
  

• Choose the best answer for the following sentence:

  Small businesses are struggling in the present economic ___________.
    

• Choose the best answer for the following sentence:

  Traveling becomes more and more convenient between countries when the high-speed European rail __________ come into use.
   

• Choose the best answer for the following sentence:

  You are really in need of a hat to keep the sun _____________ your head when traveling to Sahara desert.
   

• Choose the best answer for the following sentence:

  The detective started his work by drawing a map showing the precise ______________ of the accident.
   

• Choose the best answer for the following sentence:

  Many of the fascinating features of desert plants are ____________.