英语四级

单选题

A． Fossil fuel.
B． Greenhouse gases.
C． Increased dryness.
D． Violent storm patterns.

参考答案：B进入在线模考
Which of the following is the main cause of global warming?
信息明示题。由greenhouse gases are the main cause of rising temperatures and sea levels．可知，温室气体是造成温度升高和海平面上升的主要原因。故选B。

你可能感兴趣的试题

1

A． There were fewer studies done.
B． There were fewer policy proposals.
C． There was less agreement.
D． There were fewer objectives.

点击查看答案进入在线模考
2

A． They' re partners.
B． They' re roommates.
C． They' re classmates.
D． They' re cousins.

点击查看答案进入在线模考
3

A． He couldn't decide on a topic for his paper.
B． He thought the woman would not finish the paper on time.
C． He hadn't heard from his family in a while.
D． He thought his paper was late.

点击查看答案进入在线模考

最新试题

 至 第 56 题 Section A   Directions: In this sec

类型：填空题2018-05-10

  泰山位于山东省西部。海拔1500余米,方圆约400平方公里。泰山不仅雄伟壮观,而且是一座历史文化

类型：简答题2017-12-16

what does dutt aim to do with her study?

类型：单选题2017-12-16

What did dutt and her colleagues do with the more than 1, 2

类型：单选题2017-12-16

What do the studies find about the recommendation letters f

类型：单选题2017-12-16

what do studies about men and women in scientific research

类型：单选题2017-12-16

Passage two Questions are based on the following passage

类型：单选题2017-12-16

what does professor leonard hayflick believe?

类型：单选题2017-12-16

what do we learn about the medical community?

类型：单选题2017-12-16

what does alex zhavoronkov think ofdescribing aging as a di

类型：单选题2017-12-16