常用的压裂大泵的形式不包括下列()。A.4〞三缸泵 B.5〞三缸泵 C.4〞五缸泵

题型:单项选择题

问题:

常用的压裂大泵的形式不包括下列()。

A.4〞三缸泵

B.5〞三缸泵

C.4〞五缸泵

D.5〞五缸泵

考点:压裂操作工初级压裂操作工初级压裂操作工题库
题型:单项选择题

体现辛开苦降,寒热并用,补泻兼施的方剂是()

A.黄连解毒汤

B.葛根芩连汤

C.半夏泻心汤

D.芍药汤

E.桂枝汤

题型:单项选择题

某工程合同工期37天,合同价360万元,采用清单计价模式下的单价合同,分部分项工程量清单项目单价、措施项目单价均采用承包商的报价,规费为人、材、机费和管理费与利润之和的3.3%,税金为人、材、机费与管理费、利润、规费之和的3.4%。业主草拟的部分施工合同条款内容如下:
1.当分部分项工程量清单项目中工程量的变化幅度在10%以上时,可以调整综合单价;调整方法是:由监理工程师提出新的综合单价,经业主批准后调整合同价格。
2.安全文明施工措施费,根据分部分项工程量清单项目工程量的变化幅度按比例调整,专业工程措施费不予调整。
3.材料实际购买价格与招标文件中列出的材料暂估价相比,变化幅度不超过10%时,价格不予调整,超过10%时,可以按实际价格调整。
4.如果施工过程中发生极其恶劣的不利自然条件,工期可以顺延,损失费用均由承包商承担。
在工程开工前,承包商提交了施工网络进度计划,如图4-1所示,并得到监理工程师的批准。


施工过程中发生了如下事件:
事件1:清单中D工作的综合单价为450元/m3。在D工作开始之前,设计单位修改了设计,D工作的工程量由清单工程量4000m3增加到4800m3,D工作工程量的增加导致相应措施费用增加2500元。
事件2:在E工作施工中,承包商采购了业主推荐的某设备制造厂生产的工程设备,设备到场后检验发现缺少一关键配件,使该设备无法正常安装,导致正工作作业时间拖延2天,窝工人工费损失2000元,窝工机械费损失1500元。
事件3:H工作是一项装饰工程,其饰面石材由业主从外地采购,由石材厂家供货至现场。但因石材厂所在地连续多天遭遇季节性大雨,使得石材运至现场的时间拖延,造成H工作晚开始5天,窝工人工费损失8000元,窝工机械费损失3000元。
问题:
1.该施工网络进度计划的关键工作有哪些H工作的总时差为几天
2.指出业主草拟的合同条款中有哪些不妥之处,简要说明如何修改。
3.对于事件1,经业主与承包商协商确定,D工作全部工程量按综合单价430元/m3结算。承包商可增加的工程价款是多少可增加的工期是多少
4.对于事件2,承包商是否可向业主进行工期和费用索赔为什么若可以索赔,工期和费用索赔各是多少
5.对于事件3,承包商是否可向业主进行工期和费用索赔为什么若可以索赔,工期和费用索赔各是多少

题型:单项选择题

药典的作用是()

A.医疗必需、疗效确切、毒性和副作用小、质量稳定的常用药物及其制剂

B.国家对药品质量规格及检验方法所作的技术规定,是药品生产、供应、使用、检验和管理部门共同遵循的法定依据

C.质量标准、制备要求、鉴别、杂质检查、含量测定、功能主治及用法用量等

D.一个国家记载药品标准、规格的法典

E.能反映该国家药物生产、医疗和科技的水平,能保证人民用药有效安全

题型:单项选择题

阅读理解

     The "aha moment"(顿悟时刻) for Arjun Nagendran came one recent afternoon while he was cleaning up the muddy paw prints, and his pet dog, Rocky, was tracking across the house "again".

    "Why not make shoes for dogs?" the 10-year-old boy thought. For most kids, the moment might have

ended right here. But for Arjun and five of his classmates from Littleton School, an accidental idea proved

talent when they won first place at the first-ever Student Inventors Day at the Liberty Science Center in

Jersey City. The winning invention, "Green Paws"-an eco-friendly dog shoe made from bark, three leaves and recycled rubber-got the group a $1,000 prize, two television appearances and a shot at being the

next "As Seen on TV" hit product.

    More than 20 schools, most of them from New Jersey, gathered at the center to show their green

inventions. Each team had 10 minutes to introduce their inventions to the judges. In the end, the chief

judge Khubani announced that it was the Green Paws product that stood out, particularly because his

company had been looking into the very idea of how to keep paws clean.

    Pet products are usually popular sellers, he said, noting that his company has marked four new pet

inventions this year alone. And while his senior managers had put forward the idea of new paw wipes,

they had never thought of pet shoes, he said.

    "We thought about cleaning pets' paws, but we never thought about keeping them clean in the first

place." Khubani said after the event. "They actually have an idea that is marketable." The company will

begin conducting market research on Green Paws this week, he said. But Arjun and his team will have to

put off another day before they receive congratulations from their classmates.

1.What is the direct reason for Arjun's inventing "Green Paws"?

A. That his school inspired students to join in the invention competition

B. That Khubani's company invited him and his classmates to invent it

C. That his pet dog made the floor dirty with dirty paws

D. That his parents encouraged him to be a great inventor

2.The underlined sentence in Paragraph2 may mean ____________.

A. not all children are talented because of IQ

B. most children think twice before taking action

C. most children end their fresh ideas with actions

D. most children don't translate their ideas into action

3. What does the forth paragraph aim to tell us?

A. To prove Arjun's idea is marketable.

B. To praise Arjun's talent in invention.

C. To complain his employees are not creative.

D. To explain what is the "aha" moment.

4. Why will Khubani's company carry out market research on "Green Paws"?

A. They plan to give Arjun and his classmates more prizes

B. They hope to produce more "Paws" to make profits

C. They hope to ensure the fairness of the competition

D. They plan to find the carbon footprint of "Green Paws"

题型:单项选择题

异种钢的焊接,如低碳钢和低合金钢,不同强度等级的低合金钢焊接,一般选用的焊条是( )的焊条。

A.根据焊条的工作温度选取

B.与较低强度等级钢材相匹配

C.与较高强度等级钢材相匹配

D.与钢材化学成分相似

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