题目

--Where is John? I have something important to tell him. --He's ill.He ________ in hospital since last Monday. A.has gone        B.is        C.was         D.has been 答案:D下列三条线段不能构成三角形的三边的是( )A.3 cm , 4 cm , 5 cmB.5 cm , 6 cm ,11 cmC.5 cm , 6 cm ,10 cmD.2 cm , 3 cm , 4 cm
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