One decibel, which is a unit of relative loud, is the smallest amount of change detected by the human ear.

Câu hỏi liên quan

• Choose the best answer:

  Oh, let’s ............... till it stops ............. 

• She never wears ordinary cloths when she does the gardening, aspecially during autumn.

• She promise that she would come, but in fact she doesn’t.

ZUNIA12

• The National Basketball Association will not let any athlete to continue playing in league unless he submits voluntarily to treatment for drug addiction.

•  I have _______ Julie for ten years. 

• From the four words or phrases (A,B,C or D), choose the one that best completes the sentence.

  The general was relieved of his command after committing one of the worst …….. in the history of warfare.

• Mark the letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.

  People on Jeju Island have a unique culture.

     

• He was so mean that he couldn’t bear _______to the smallest sum of money for the charity.

   

• The most substances expand in volume when they are heated.

• My sister attends an university in the Midwest which specializes in science.

• Identify the error in each sentence: In the early 1900s, Roy Harris created and promoted a distinctly American style of classical music and greatly influenced a number of composer in the United States

• With an annual income of fifty thousand dollars a year, he can afford to give a luxurious life.

   

• From the four words or phrases (A,B,C or D), choose the one that best completes the sentence.

  The doctor made a mistake with the medicine she prescribed. …….. , she was never questioned about this error.

• He was so carelful that he left the work half doing and went to the cinema.

• Disease is not as widespread than before because better preventive vaccine and vastly developed nutrition.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

  A. philosophy B. phenomenon C. optimism D. petroleum

• The England mint makes frequently coins from cheap alloys that are worth far less the value stamped on them.

• The girl who were injured in the accident is now in hospital.

• Many small houses and huts were washed away when the river bursted its banks.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions

  A. Garden     B. Handbag     C. Happen     D. Explain