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【判断题】
灭菌是指用物理或化学等方法杀灭或除去所有致病和非致病微生物繁殖体和芽孢的手段。
A.
正确
B.
错误
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【单选题】Managers Jill and Paul are talking about how to resolve a business problem. Jill suggests that a committee should be formed to discuss the issues. Paul argues that committees are: (i) Time-consuming ...
A.
Both (i) and (ii)
B.
(i) only
C.
(ii) only
D.
Neither statement is true
【简答题】part 1 ted-depression.mp4 On July 4, 2013, my world came crashing in on me. That was the day I got a phone call from my mom telling me that my 22-year-old nephew, Paul, had ended his life, after years...
【简答题】Hi, everyone. I’m Li Zihan. I’m a 1 in No. 1 Middle School in Beijing. I have two English friends. 2 names are Paul and Mary. Paul and Mary both study at Green School. Paul likes 3 . He can swim, and ...
【简答题】某城市输水管线长4.28km,DN1200钢管,管道埋深约5.0m,管线位于城市主干道路的非机动车道上。采用明开槽方法施工,沟槽土质为回填杂土及粉砂土。受交通条件制约,沟槽土方挖运和吊车下管安排在晚10时~次日早6时进行,项目部办理了管线开挖占路手续。现场施工发生如下事件: (1)为吊车下管方便,选择夜间时段移动护栏临时占用一条机动车道,受到交通管理部门的处罚。 (2)挖土机开挖沟槽时发现有一...
【简答题】The cartoon series , Tom and Jerry, is a very popular program. What do you think of it ? Come on and try our question. NAME: Paul Smith AGE: 12 SCHOOL: primary school. Questions and Comments (very sat...
【简答题】请运用你在初中学过的化学知识和技能,解决下列生活中的实际问题 (1)铁生锈需要氧气和______,在厨房里防止菜刀锈蚀的常用方法有______(写一种即可); (2)若装白磷的储罐起火,可以用水灭火,也可以用沙土填埋灭火.其中用沙土填埋灭火的原理是______. (3)要用木柴烧火做饭,从燃烧的三个条件来看,除木柴和空气外,还要具备的条件是______ (4)目前一种叫碘酸钙[Ca(IO 3 ) ...
【简答题】钢铁工业是国家工业的基础。请回答钢铁冶炼、腐蚀、防护过程中的有关问题。 (1)工业用热还原法炼铁,写出由CO还原赤铁矿(主要成分为Fe 2 O 3 )的化学方程式: __________________________。 (2)铁在潮湿的空气中容易被腐蚀为铁锈(Fe 2 O 3 ·xH 2 O),反应的化学方程式是: ______________________________。 (3)生产中可用...
【简答题】(10分)钢铁工业是国家工业的基础。请回答钢铁冶炼、腐蚀、防护过程中的有关问题。 (1)工业用热还原法炼铁,写出由CO还原赤铁矿(主要成分为Fe 2 O 3 )的化学方程式: _______________________________________ 。 (2)铁在潮湿的空气中容易被腐蚀为铁锈( Fe 2 O 3 ?x H 2 O),写出铁发生电化学腐蚀时负极的电极反应:___________...
【判断题】科学发展观强调,建设生态文明,实质上就是要建设以资源节约型、环境友好型社会。
A.
正确
B.
错误
【简答题】2 Complete the words in the sentences. ► They both play in a rock band . 1 My brother plays the violin in an o____. 2 Noel Gallagher plays the g____ in the rock b____ ‘Oasis’, and his br...
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