【題目】The ______ of new inventions(發(fā)明) should be to make life easier, not to make it harder.

A. rules B. subjects C. secrets D. purposes

【答案】D

【解析】

試題分析:句意:新發(fā)明的目的應(yīng)是為了使生活更容易,不是使生活更困難。rules規(guī)則; subjects主題; secrets秘密;purposes目的。根據(jù)to make life easier,not to make it harder可知此處指的是目的,故選D。

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