Để phân biệt da thật và da giả làm bằng PVC, người ta thường dùng phương pháp đơn giản là :

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  awareness                  establish                     summarize                    existence 

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

  low             now              know            slow

• Choose a word that has different stress pattern:

  tortoise                  increase                   drainage                    wetlands 

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

  orchestra           orchard            school             chemical

• Choose a word that has different stress pattern:

  important                 description                  carelessness                      reviewer

• Choose a word that has different stress pattern:

  fiction               poem                  index                  cartoon

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

  look             foot             soon          book

• Choose a word that has different stress pattern:

  especial                  character                      discover                   distinction

• Choose a word that has different stress pattern:

  equivalent                 pictorially                 biography                informative

• Choose a word that has different stress pattern:

  romantic                detective                      reference                    unpleasant