Cho hình chóp  có đáy  là hình vuông, cạnh bên  vuông góc với mặt phẳng đáy. Đường thẳng  vuông góc với đường thẳng nào sau đây

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  _________ a contest requires a good preparation.

   

• Choose the best answer for the following sentence:

  She looked at me with admiration, ____________.

   

• Choose the best answer for the following sentence:

  _________ a winner in an eloquence, you must be very competent in public speaking.

   

• Choose the best answer for the following sentence:

  ______________ The semi-finals, he went on to play in the finals.

   

• 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