∶拟人( ) ∶课本 ∶洗衣机 ∶香蕉 ∶月亮 ,房屋建筑材料会发出独特的声音。声音感应报警器能够精确探测这些声音,提供一个房屋起火的早期警报,使居住者能在被烟雾困住之前逃离。 由于烟熏是房屋火灾人员伤亡最通常的致命因素,所以安装声音感应报警器将会有效地降低房屋火灾的人员伤亡。下列哪一个假设如果正确,最能反驳上面的论述?( ) ,其高昂成本将下降 ,许多房屋建筑材料发出的声音在几百米外也可听见 ,产生大量烟雾却不发出声音 D. :(1)受到奖励(2)改进工艺(3)传授他人(4) —5—1—3—4 —53 —4—2—5—1 5—4—2 ( )2009 436 万人。其中“外出农民工”492 万人。在外出农民工中,“住户中外385 万人;“举家外出农民工”2966 万人,比上年增加2009 年以下四项的增长率最低的是( ) A.“农民工总量” B.“外出农民工” C.“住户中外出农民工” D.“举家外出农民工” 二、英语单元 Directions A word or phrase is missing in each of the sentences below. Fouranswer choices are given below each sentence. Select the best answer to complete the sentence. Then, mark the letter (A), (B), (C), or (D) on your answer sheet. . The fibers of cotton fire hoses ________ up enough water to keep them wetand protect them from the flames. A) soak B) search C) succeeded D) spare wrote to him two weeks ago, but he hasn"t _______ yet. A) replacing B) reminds C) reply D) replied readers. A) they C) them 15. Don’A) fall C)to fall D) had fallen engineering to improve their safety designs to _______ up with industry standards. A) make B) clear