Biết với , , , là các số nguyên. Tính .

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose one sentence that has the same meaning as the root one:

  She is wearing a nice dress. Her husband presented it to her on their 10th wedding anniversary.

• Choose one sentence that has the same meaning as the root one:

  We ordered wine, not beer.

• Choose a word that has different stress pattern:

  competitive              entertainment                   disqualify           especially                                                    

   

• Choose one sentence that has the same meaning as the root one:

  You can send the report by fax or you can send it by email.

• Choose a word that has different stress pattern:

    parade                global                  beauty                 title

• Choose a word that has different stress pattern:

   popularity              international                   collaboration               understanding

• Find a mistake in the four underlined parts of the sentence and correct it:

  It was we that want to see the hotel manager.

• Find a mistake in the four underlined parts of the sentence and correct it:

  It was we that the guide showed round the ancient town.

• Choose the word that has the underlined part pronounced differently from the rest:

   beauty                apply                 physical              entirely

• Find a mistake in the four underlined parts of the sentence and correct it:

  Neither of the three men knows her name.