第19题: [单项选择]最宜用于寒冷地区冬季混凝土施工的水泥品种是( ) A. 硅酸盐水泥 B. 矿渣硅酸盐水泥 C. 粉煤灰质硅酸盐水泥 D. 火山灰质硅酸盐水泥 参考答案:A 答案解析:[解析] 本题主要考查的知识点是硅酸盐水泥的应用。 [要点透析] 硅酸盐水泥抗冻性好,强度等级高,适用于寒冷地区冬季混凝土的施工。
第32题: [填空题]It was ______ from her desperate dad that flung Nancy Woods and her parents into action. 参考答案:he shock phone call 答案解析:[题眼] It was ______ from her desperate dad that flung Nancy Woods and her parents into action.
[定位]