题目

Can you help me ________ the pen? It’s under the chair.A. ask for B. look for C. pick up D. put up 答案:【答案】C【解析】句意:你能帮助我捡起这个钢笔吗?它在你椅子下面。考查动词短语辨析题。A. ask for请求…;B. look for寻找;C. pick up捡起;D. put up张贴。根据句意语境,可知pick up“捡起”符合语境,故选C。 函数y=x2+x(-1≤x≤3)的值域是 [  ] A.[0,12] B.[-,12] C.[,12] D.[,12]
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