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【简答题】
Each high school has its own policy. One good example is that some high schools require all students to wear uniforms, while others do not. I have been to both types of schools, and if I have to decide which one is better, I will pick the former. Perhaps every student has this experience: once you are in your school uniforms, you will care more about your own behavior. Uniforms give you an identity that always reminds that you belong to a group. What you do will not only represent yourself, but also the group you belong to, as well as the people with you. In other words, you carry the responsibility to maintain the honor of the group. When you are in your own clothes, it doesn’t matter for you to behave badly in public, but when in your uniform, it does. For high school students, who are not adults yet, this is a good way to shape their behavior. Moreover, uniforms create an atmosphere of equality. While permitted to wear their won clothes, students may pay much attention to what they wear, in order to show how rich their families are. While in uniforms, all students, rich or poor, look the same, and will be treated equally. Besides, free from the desires to gain what is new in the shopping mall, wearing uniforms helps students to concentrate on their study. For all the reasons above, I believe that it is a better choice for high school students to wear uniforms.  They can wear them after school or on weekends. 小题1:According to the author, high schools that require students to wear uniforms______. A.are more attractive to students B. are more strict with students C. carry out a better policy D. admit more excellent students. 小题2:How many reasons does the author give to support his or her ideas? A.two B.three C.four D.five 小题3:According to Paragraph 2, wearing uniforms helps students_______. A.focus on their study B.become responsible C.build up their confidence D.find the group they belong to 小题4: What would be the best title for the passage? A.A wise choice, to wear school uniform B.An honor, to wear your school uniform C.A difficult choice, in school uniform or not? D.A difficult choice, which school should we pick?
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【判断题】综合评价法的计算方法主要有打分综合法、打分排队法、综合指数法、功效系数法等
A.
正确
B.
错误
【多选题】关于“综合评分法”说法正确的是()
A.
是指在最大限度地满足招标文件实质性要求前提下,按照招标文件中规定的各项因素进行综合评审后,以评标总得分最高的投标人作为中标候选供应商或中标供应商的评标方法
B.
综合评分的主要因素是:价格、技术、财务状况、信誉、业绩、服务、对招标文件的响应程度,以及相应的比重或权值等
C.
评标时,评标委员会各成员应当独立对每个有效投标人的标书进行评价、打分,然后汇总每个投标人每项评分因素的得分
【简答题】在120℃,101kPa条件下,由H 2 、CH 4 、CO组成的混合气体amL,通入一定量(设为xmL)氧气使其完全燃烧。 (1)若a mL混合气体完全燃烧消耗相同条件下氧气的体积也为amL(即x=a),则原混合气体中CH 4 的体积分数是_______________; (2)若完全燃烧后生成CO 2 和H 2 O(g)的总体积在相同条件下为2a mL,则原混合气体中CH 4 的体积分数是__...
【多选题】网络计划按代号不同分为()
A.
单代号网络计划;
B.
单目标网络计划;
C.
双目标网络计划;
D.
双代号网络计划;
E.
有时标网络计划
【单选题】下列叙述中哪项与乙胺嗪不符
A.
结构中含哌嗪环
B.
哌嗪环的一个氮原子被二乙氨基甲酰化
C.
枸橼酸盐的水溶液显中性
D.
游离的乙嗪胺与钼酸铵一硫酸试液一起加热生成暗蓝色沉淀
E.
用于抗丝虫病
【单选题】当疑似急性心肌梗死患者发生心搏骤停时,医生的首次口头医嘱最有可能的是立即静脉注射
A.
阿托品1mg
B.
胺碘酮300mg
C.
利多卡因100mg
D.
肾上腺素1mg
E.
异丙肾上腺素1mg
【单选题】下列关于气体燃料的性质说法错误的是( )。
A.
工程中使用的气体燃料都不是单一化学成分的气体燃料,而是多种单一气体燃料的混合气体,所以其物理化学工艺性质均与单一成分的气体燃料有很大的区别
B.
气态的液化石油气比空气轻,容易积聚在地面附近和地势低洼处,在使用时必须加以注意
C.
着火温度并不是可燃气体固有的物化常数,它与燃气的种类、在混合燃气中含量、混合气的均匀程度和压力有关,也与燃烧设备的构造、周围介质的热容量、有无催化作用及燃烧体系的散热条件有关
D.
可燃气体和空气的混合物遇明火而引起爆炸时的可燃气体含量(体积分数)范围称为爆炸极限
【简答题】(14分)只含碳、氢、氧的有机物,为便于研究其燃烧时,生成物与所需氧气的量的关系,可用通式(C x H y ) m (H 2 O) n 或(C x O y ) m (H 2 O) n 表示它们。(m、n、x、y 均为) 例如:CH 3 OH、C 2 H 5 OH、C 3 H 7 OH等物质可用通式(CH 2 ) m (H 2 O) n 表示,其m分别为1,2, 3,n均为1。它们燃烧时所需的...
【简答题】在某咨询公司的投标中,拟采用基于质量和费用的投标方法,其中技术标的权重为85%,商务标的权重为15%。技术标的评审分为公司经验、工作方法和项目组人员构成,权重分别为10%、 40%和50%,采用百分制计分。商务标主要评价投标人的报价,以(最低投标报价/各投标报价)计算各投标人的得分。现有4家公司参加投标竞争。5位评标委员已经对各公司的技术标进行了评分,评委打分的平均得分见表4-2,各投标人的报价见...
【单选题】评价指标综合的主要方法有加权平均法、主次兼顾法、效益成本法和()
A.
排队打分法
B.
功效系数法
C.
体操计分法
D.
专家评分法
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