Evidence obtained from observation and experiment is often used to ________ a scientific theory.
A．confirmB．claim
C．concludeD．calculate
A
解析　考查動(dòng)詞辨析。confirm證實(shí)；claim聲稱，斷言；conclude得出結(jié)論；calculate計(jì)算，估計(jì)。句意為：由觀察和實(shí)驗(yàn)得出的證據(jù)通常被用來證實(shí)科學(xué)理論。故A項(xiàng)正確。
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

Those poor and needy teenagers were excited to find a shop at the corner where they could buy ________ priced bikes.                                           (2013·福建，31)
A．competitivelyB．recently
C．reasonablyD．a(chǎn)ffordably

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Bob’s lectures ________ a fairly wide range and I can’t sum up what he says in a few sentences.
A．coveredB．conveyed
C．consideredD．commanded

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The government has agreed to pay the firms extra sums to ________ for their financial losses.
A．make upB．bring up
C．fill upD．look up

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Michelle found a job as a high school teacher which ________ spending quite a lot of time with students.                                                        (2013·福建，24)
A．enjoysB．involves
C．practicesD．suggests

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

According to the law，all foreigners have to________with the local police within two weeks of arrival.                                                       (2013·湖北，24)
A．a(chǎn)ssociateB．dispute
C．negotiateD．register

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

“Tommy，run！Be quick！The house is on fire！” the mother shouted，with ________ clearly in her voice.                                                  (2011·湖北，21)
A．a(chǎn)ngerB．rudeness
C．regret D．panic

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—Why does Thomas speak through every discussion but never listen to the others?
—That's what he ________ do. We used to hate that, but are used to it now.
A．ought toB．can
C．willD．might

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Mr. Smith got a ticket on his way home because he had failed to      ________  at a red light.
A．work outB．pull out
C．look upD．pull up

查看答案和解析>>

同步練習(xí)冊答案