题目内容
屈光度为2.5D的薄透镜的焦距为（）
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[音频]Instead, I visited the writing 1______ — there is one in every 2______ residential hall — for every paper I 3_______. My papers were always written days before they were 4____. I 5_____ after classes to question professors. My classmates lent me their notes so I could learn the skill of note-taking in English.
有一填坑，其土方量为1000 m3，使用斗容量 3 m3 的汽车运土，每车运费10元，请问填满夯实此坑需多少运费？（Ks＝1.25， K′s＝1.1）。
土钉支护面层喷射混凝土总厚度不宜小于（ ）mm。
下列中的施工机械哪种是适用于静力沉桩的？（）
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