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导航: 首页 > 成人高考 >  专升本 >  英语 > 2019年成人高考专升本《英语》真题试卷与答案
 

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Since computers were introduced,they( )to be useful tools for people weak in math.
A、had proved
B、have proved
C、will prove
D、are proving

答案是:B

解析:【答案】B 【考情点拨】考查现在完成时。 【应试指导】 句意:自电脑问世以后,它们已被证明对数学薄弱的人们来说是有用的工具。since引导的从句中 的动词为一般过去时,主句用现在完成时,故选B。

出自 成人高考 > 英语 >  2019年成人高考专升本《英语》真题试卷与答案

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1、It was suggested that this hardworking girl( ) an example for other students.
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4、( )all the difficulties,the researcher continued her research.
5、If Peter had told his teacher about his difficulty in math homework,she( ) him before the exam.


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