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It is said that the software on learning subjects for pupils       in a very practical way.
A．designedB．designingC．a(chǎn)re designedD．is designed
D

試題分析： 本句的主語(yǔ)是the software是一個(gè)單數(shù)名詞，再根據(jù)前面的is說(shuō)明本句使用一般現(xiàn)在時(shí)。句意：據(jù)說(shuō)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(lái)的。根據(jù)句意說(shuō)明使用被動(dòng)語(yǔ)態(tài)的形式。故D正確，
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