Emergency line operators must always ________ calm and make sure that they get all the information they need to send help.
A．growB．a(chǎn)ppearC．becomeD．stay
D
句意：急診熱線的接線員們必須一直保持冷靜，并確保得到他們所需的所有信息以便派出救助。A項grow和C項become都表示“變化”，與always意義不符合；appear作系動詞，表示“好像，似乎”之意，不符合題意。系動詞stay意為“保持”，符合題意。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

(2013·濰坊三縣一模)If you don't work hard，it will be of no ________ for others to help you.
A．sympathyB．significance
C．relationD．sign

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

It is our responsibility to ________ that the country's health care publications are beneficial to the people.
A．satisfyB．compromise
C．quarrelD．ensure

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—Have you ________ some new ideas?
—Yeah.I'll tell you later.
A．come aboutB．come into
C．come up withD．come out with

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I tried phoning her office, but I couldn't ________.(2009·全國Ⅰ)
A．get alongB．get onC．get toD．get through

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The effect of the medicine on this kind of disease remains ________.
A．seenB．to be seenC．seeingD．to see

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

When his brother was to cross the street，he was knocked down by a truck and badly ________.
A．injuredB．damagedC．harmedD．destroyed

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I wish to thank Professor Smith，without ________ help I would never have got this far.(2012·天津)
A．whoB．whoseC．whomD．which

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I knew that ________ would ever discourage him；he would never give up wanting to be a director.(2011·湖南)
A．somethingB．a(chǎn)nything
C．everythingD．nothing

查看答案和解析>>

同步練習(xí)冊答案