In the experiment the scientist kept a watchful eye________the developments and recorded every detail.
A．inB．a(chǎn)t C．forD．on
D  
      題意：在試驗中科學家密切注視著試驗的進展并且記錄著每個細節(jié)。keep an eye on…是習語，意為“密切注視…”。
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：單選題

What he said that day was deeply impressed _______ my memory.
A．byB．withC．a(chǎn)tD．on

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

“If the government does not give any feedback or does not release a final report of the survey, the respondents will think they participated _______," said the social scientist Hu.
A．in no wayB．in vain C．without effortD．a(chǎn)t a loss

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The woman sold the eggs _____ seven dollars and they were sold ____ half price.
A．with; atB．for; atC．a(chǎn)t; inD．by; on

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Food prices increased________5% in less than one month.
A．forB．toC．byD．a(chǎn)t

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—I like coffee with nothing in it. How about you?
—I prefer coffee________sugar.
A．toB．forC．withD．than

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

We must show concern ______ each other.
A．withB．forC．a(chǎn)tD．to

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Although Tom agreed with her on most points, here was one _____ which he was unwilling to give in.
A．onB．inC．to D．with

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The beef is too expensive. I won’t buy it _____.
A．a(chǎn)t that priceB．a(chǎn)t a that price
C．on that priceD．in that price

查看答案和解析>>

同步練習冊答案