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It is said that the software on learning subjects for pupils       in a very practical way.

A．designed B．designing C．a(chǎn)re designed D．is designed

D

解析試題分析： 本句的主語是the software是一個(gè)單數(shù)名詞，再根據(jù)前面的is說明本句使用一般現(xiàn)在時(shí)。句意：據(jù)說關(guān)于學(xué)生學(xué)習(xí)的軟件是用一種特殊的方法被設(shè)計(jì)出來的。根據(jù)句意說明使用被動(dòng)語態(tài)的形式。故D正確，
考點(diǎn)： 考察時(shí)態(tài)和主謂一致

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