单选题Which of the following is true about coral reefs?A They play a significant role in biodiversity.B They account for 25% of the marine life.C More than a quarter of marine life feed on them.D They are threatened by marine life and could be killed.

题目
单选题
Which of the following is true about coral reefs?
A

They play a significant role in biodiversity.

B

They account for 25% of the marine life.

C

More than a quarter of marine life feed on them.

D

They are threatened by marine life and could be killed.

参考答案和解析
正确答案: D
解析:
录音中提到“Coral reefs are extremely important for biodiversity, it provides habitats to over 25% of all marine life.”,意思是:珊瑚礁对生物多样性极度重要,它为超过25%的海洋生物提供栖息地。所以A项正确。另外,根据“coral bleaching is threatening many of the world’s coral reefs”(珊瑚礁白化正在威胁着世界上的许多珊瑚礁)可知,D项错误。
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相似问题和答案

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Which of the following marine insurance policies is normally purchased by the cargo owner? ______.

A.Hull

B.Cargo

C.Protection and Indemnity

D.Pollution


正确答案:B

第2题:

Heavy fuel oils when spilled are ______.

A.more harmful to sea life than lighter oils

B.easier to clean up than lighter refined oils

C.less harmful to sea life than lighter oils

D.not a real threat to marine life


正确答案:C
泄露的重燃料油对海洋生物的危害小于轻油。

第3题:

Of the following, which one is not a term of Marine Weather Bulletin?______.

A.Complex low

B.Depression

C.High pressure

D.Ambient pressure


正确答案:D
对于下列,哪个不是海上气象公告术语?环境压力

第4题:

填空题
The Inuit people depend on fat-rich marine life for food.____

正确答案: F
解析:
由题干中“Inuit people”定位至F段。由本段可知,在全世界,住在北极地区的因纽特人受到污染物影响最严重,因为他们以鱼类或海豹等富含脂肪的海洋生物为生。故匹配段落为F段。

第5题:

The Great Barrier Reef is included on the World Heritage list because()

  • A、it has the most beautiful seascape in the world
  • B、it has the greatest number of islands in the world
  • C、it has the most diverse and complex marine life in the world
  • D、it has the longest coast in the world

正确答案:C

第6题:

Which statement is TRUE of a gasoline spill ________.

A.It is visible for a shorter time than a fuel oil spill

B.It is not covered by the pollution laws

C.It does little harm to marine life

D.It will sink more rapidly than crude oil


正确答案:A

第7题:

Which of the following is not true about the Maori protest movement?()

  • A、It is popular with younger urban Maoris.
  • B、It aims to gain recognition for their language,values and culture in national life.
  • C、It demands compensation for their language,values and culture in national life.
  • D、The New Zealand government has never paid any attention to the movement.

正确答案:D

第8题:

The objectives of the ISM Code are to ensure ①safety at sea②prevention of human injury or loss of life③avoidance of damage to the marine environment and to property

A.①

B.②

C.②③

D.①②③


正确答案:D

第9题:

单选题
Which of the following is NOT true about the NIF?
A

NIF contains the world’s most powerful laser.

B

NIF experiments will not get significant results until after 2010.

C

NIF is by far the only experimental facility aimed at demonstrating the building blocks of nuclear fusion.

D

NIF is at the beginning of its experimental life.


正确答案: C
解析:
题目问的是:下列关于NIF(国家点火装置)哪一项是错误的?根据文章第11段“There are currently several experimental facilities around the world aimed at demonstrating the building blocks of nuclear fusion.”可知,NIF并不是目前唯一一个致力于演示核聚变的试验性装置。故选C。

第10题:

单选题
Which of the following marine examples belongs to the open loop control system?()
A

Accommodation heating system

B

Steering gear

C

Boiler control

D

Cargo control


正确答案: D
解析: 暂无解析

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