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

Câu hỏi liên quan

• Water, ice, and snow play a role in affecting an Earth’s rotation.

• A factor in the formation of desert are low mountains, which shield the region, from rainfall.

• Choose the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.

  We need to build up people's awareness about the environment.

ZUNIA12

• Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

  As you come to each town, however small, you will see a sign which states the name of the town and how many inhabitants does it have.

   

• Identify the error in each sentence: 

  I am not fond of reading fiction books as they are imaginable ones which are not real.

• Choose the best answer:

  Many great opera ................. of the world can be heard in the Sydney Opera.

• 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. Furnish     B. Reason     C. Promise     D. Tonight

• If we come home on time, our step-mother will be angry.

• The profits are supposed________ among the shareholders.

• The film we saw last night was different from that I had expected.

• Choose the best answer among A, B, C or D that best completes each sentence: She began her writing career when she was only 8. I think she is a ……writer.

• 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. Considerate     B. Community    C. Different     D. Photographer

• Identify the error in each sentence: George hasn’t completed the assignment yet, and Mary hasn’t too

• I would like to invite you to participate in the ........... ceremony.

• While his friends went ________ into the next class, John was kept ________.

• She _______always wanted to meet him

• Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

   I'm like my mum, whereas my brother looks like my dad.

       

• Choose the best answer:

  What can we do to spend less ............. lighting?

• Thanks to his obstinacy, he achieved what he wanted. If he were discouraged earlier by this failures, he would not have reached his aims.

• Choose the best answer:

  I hate ................. the dirty dishes after a meal.