题目

They always kept on good _____ with their next-door neighbors for the children's sake. A. friendship    B. relations      C. intentions   D. terms 答案:D 解析: 考查名词和动词的搭配。keep (be) on good terms with与......和睦相处。(2010•凉山州)如图,如果从半径为3cm的圆形纸片剪去圆周的一个扇形,将留下的扇形围成一个圆锥(接缝处不重叠),那么这个圆锥的体积是    cm3.
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