根据以下材料,回答题 In a telephone survey of more than 2,000adults,21% said they beli...

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问题 根据以下材料,回答题
In a telephone survey of more than 2,000adults,21% said they believed the sun revolved (旋转) around the earth. An   51 7% did not know which revolvedaround   52. I have no doubt that  53  all of these people were 54 inschool that the earth revolves around the sun:  55 may even have written it   56  a test. But they never  57  their incorrect mental models ofplanetary(行星的)  58 because their everydayobservations didn′t support  59  their teachers told them: People seethe sun "moving" 60 the sky as morning turns to night, and theearth seems stationary(静止的) 61 that ishappening.
Students can learn the right answers   62  heart in class, and yet never combinedthem   63 their working models of the world.The objectively correct answer the professor accepts and the  64  personal understanding of the world can  65 side by side, each unaffected bythe other.
Outside of class, the students like to seethe   66  model because it has always worked well   67  that circumstance. Unless professorsaddress 68 errors in students′ personal models of the world, studentsare not 69 to replace them with 70 one.

选项 A.since   
B.so      
C.while   
D.for

答案C

解析考查连词。since“自从”,so“所以”,while“当……时”,for“因为”。根据句意“当这一切发生的时候,地球仿佛是静止的”可知,选择while。
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