【C12】A．similarB．distinctC．urgentD．separate

在进行SQL查询时，为了使得返回的结果集中记录互不相同，需要使用关键字（)。A． INB．DISTINCTC．TOPD

【34】A．similarB．longC．differentD．short

【C10】A．ruinedB．distinctC．fragileD．extinct

【C9】A．similarB．sameC．newD．different

A（n) ______lack of food brought hunger to the Iraqi people.A．crucialB．criticalC．urgentD．ac

A．similarB．equalC．uniqueD．unrelated