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材料题请点击右侧查看材料问题 查看材料

A. less
B. fewer
C. more
D. little

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在施工现场发生气体中毒事故的部位主要是()A.人工挖孔桩挖掘孔井时,孔内常有一氧化碳、硫化氰等毒在施工现场发生气体中毒事故的部位主要是()

A. 人工挖孔桩挖掘孔井时,孔内常有一氧化碳、硫化氰等毒气溢出,特别是在旧河床,有腐殖土等地层挖孔,更易散发出有毒气体,稍一疏忽会造成作业人员中毒。
B. 在地下室、水池、化粪池等部位作业时,作业人员也要注意有害气体的伤害。
C. 夏天中暴晒时作业
D. 冬季施工中常在混凝土或砂浆里掺放添加剂,常用的是亚硝酸钠,属剧毒品。
E. 施工队伍宿舍需要取暖时,常在宿舍内生煤火,或用焦炭作燃料取暖,容易产生一氧化碳

低压接户线的进户端对地面的垂直距离不宜小于()米。

A. 1.5
B. 2
C. 2.5
D. 3

根据下面内容,回答题:
Dear Cassy,
Thanks for reminding me by e-mail that you want to baby-sit our children. In spite of the 21 that you are only 12 years old, my wife and I would be 22 to consider your application if you canmeet a few modest 23 :
1. Submit three letters from 24 who will certify that you have never failed to follow directions perfectly in class and never failed to hand in a homework assignment 25.
2. Submit a note from two 26 who will certify that you are in perfect health, have never been sick, and never will be sick.
3. Submit a document from your physical education teacher or team 27 that proves that you can do each of the following: Run two miles in 28 than nine minutes, climb agreased rope to a 29 of twenty feet in thirty seconds while balancing a glass of water on your nose, and walk in bare feet over hot coals and broken glass without complaint or 30.
4. Submit notarized letters from at least two mental health professionals 31 that you have never 32 a jealous, envious, or hostile thought towards any living being Or inanimate object.
5. Play and 33 five expert chess players while blindfolded after going without sleep for 48 hotlrs.
6. Wait 34 for two years while we have private investigators 35 that all your documents are authentic.
Your loving and trusting friends,
The Smiths
材料题请点击右侧查看材料问题 查看材料

A. fact
B. thing
C. reason
D. fair

材料题请点击右侧查看材料问题 查看材料

A. height
B. length
C. far
D. depth

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