In human beings, as in other mammal, hairs around the eyes, in ears and in the nose prevent dust, insects, and other matters from entering these organs.

Câu hỏi liên quan

• After analysing the steep rise in profits according to your report, it was convinced that your analyses were correct.

• Choose the best word or phrase to complete the following sentences:

  I like reading books _________ tell about different peoples and their cultures.

• Fiorello La Guardia made a speech to the United Nations Relief Administration, which he was the director, stating that Europe did not experience prosperity after Word War Two.

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• Choose the word/phrase (A, B, C, D) that best fits the space in each sentence:

  The boy's family is very poor. He has to go to school on foot. He wishes he_______enough money to buy a bike. 

• Excuse me, what is the ________ fee to enter the Independence Palace?

   

• The ozone layer must be protected because it shields the Earth from excessive ultraviolet radiations.

• Diane Arbus’s unusual and controversial work includes photographs of sixties celebrities.

• This bird’s tail is double as long as its body.

• Some trees such as the Banksias need to be burned periodically so that the seeds would open and germinate

• Efforts__________ to offer all children equal access to education.

• Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get to its root causes and find cures

• It would be both noticed and appreciating if you could finish the work before you leave.

• The flag over the White House is risen at dawn every day by a color guard from the United States armed forces

• Several people have apparent tried to change the man’s mind, but he refuses to listen.

• The amount of books in the Library of Congress is more than 58 million volumes.

• Kiwi birds search the ground with the bills for insects, worms, and snails to eat.

• Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

  You have to make up your mind fast, __________ you slip the best opportunity.

• Rice is most important plant in Viet Nam.

• Nomadic hunter and gatherer societies have access to only a limited amount of food in an area and moved on when they have exhausted each locality.

• Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

  The boy fell into the river and was_________ along the fast current.