—What does PM 2.5 mean?

—It's a professional ________ indicating the condition of air pollution.

A．term B．item C．number D．mark

 

A

【解析】A　句意：“PM 2.5是什么意思？”“它是一個表明空氣污染狀況的專業(yè)術(shù)語�！眛erm在此表示“術(shù)語”。

 

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（情景交際）完形填空閱讀理解（解析版） 題型：單項(xiàng)填空

—The ice cream is really delicious. Can I have some more?

—________.

A．Behave yourself B．Please yourself

C．Do it yourself D．Be my guest

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（定語從句）＋閱讀理解（解析版） 題型：單項(xiàng)填空

Was it through Mary, ________ was working at a high school, ________ you got to know Tom?

A．who; who B．that; which

C．who; that D．who; which

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（名詞性從句）閱讀理解（解析版） 題型：單項(xiàng)填空

The British are not so familiar with different cultures and other ways of doing things, ________ is often the case in other countries.

A．that B．who

C．where D．a(chǎn)s

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（名詞、冠詞）完形填空閱讀理解（解析版） 題型：單項(xiàng)填空

Good shoes, clothes and a backpack are the basic ________ you need for your hiking.

A．equipment B．instruments

C．tools D．models

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（名詞、冠詞）完形填空閱讀理解（解析版） 題型：單項(xiàng)填空

As ______ mountains surrounding our village are turning much greener, they have become ________ home to a large number of wild animals.

A．the; / B．the; a C．/; a D．the; the

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（句子大舞臺）閱讀理解書面表達(dá)（解析版） 題型：單項(xiàng)填空

Your cousin is said ________ a new computer program recently, but do you know when he will finish it?

A．to design B．designing

C．to have been designing D．to have designed

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（動詞時態(tài)、語態(tài)）＋閱讀理解（解析版） 題型：單項(xiàng)填空

I ________ him in time, otherwise he would have fallen off the bike.

A．had supported B．supported

C．have supported D．support

 

查看答案和解析>>

科目：高中英語 來源：2014高考英語瘋狂沖刺倒計(jì)時：單項(xiàng)填空（代詞、介詞）＋閱讀理解（解析版） 題型：單項(xiàng)填空

—What are you two whispering about over there?

—Oh, ________.Just small talk.

A．no B．nobody C．none D．nothing

 

查看答案和解析>>

同步練習(xí)冊答案