试题与答案

关于招标工程量清单缺项.漏项的处理,下列说法中正确的是()。A.工程量清单缺项、漏项

题型:单项选择题

题目:

关于招标工程量清单缺项.漏项的处理,下列说法中正确的是()。

A.工程量清单缺项、漏项及计算错误带来的风险由发承包双方共同承担 

B.分部分项工程量清单漏项造成新增工程量的,应按变更事件的有关方法调整合同价款 

C.分部分项工程量清单缺项引起措施项目发生变化的,应按与分部分项工程相同的方法进行调整 

D.招标工程量清单中措施工项目缺项,招标人在投标时未予以填报的,合同实施期间不予增加

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:问答题

如图所示,以O为原点建立直角坐标系Oxy,绝缘光滑水平面沿着x轴,y轴在竖直方向.在水平面上方存在与x轴平行的匀强电场.一个质量m=2.0×10-3kg、电量q=2.0×10-6C的带正电的物体(可作为质点),从O点开始以一定的初速度沿着x轴正方向做直线运动,其位移随时间的变化规律为x=8.0t-10t2,式中x的单位为m,t的单位为s.不计空气阻力,取g=10m/s2

(1)求匀强电场的场强大小和方向;

(2)求带电物体在0.8s内经过的路程;

(3)若在第0.8s末突然将匀强电场的方向变为沿y轴正方向,场强大小保持不变.求在0~1.0s内带电物体电势能的变化量.

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题型:单项选择题

Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior of most people.
"The burnt child fears the fire" is one instance; another is the rise of despots like Hitler. Both examples also point up the fact that attitudes stem from experience. In one case the experience was direct and impressive; in the other it was indirect and cumulative. The Nazis were indoctrinated largely by the speeches they heard and the books they read.
The classroom teacher in the elementary school is in a strategic position to influence attitudes. This is true partly because children acquire attitudes from those adults whose word they respect.
Another reason it is true is that pupils often delve somewhat deeply into a subject in school that has only been touched upon at home or has possibly never occurred to them before. To a child who had previously acquired little knowledge of Mexico, his teacher’s method of handling such a unit would greatly affect his attitude toward Mexicans.
The media through which the teacher can develop wholesome attitudes are innumerable. Social studies (with special reference to races, creeds and nationalities), science matters of health and safety, the very atmosphere of the classroom... these are a few of the fertile fields for the inculcation of proper emotional reactions.
However, when children come to school with undesirable attitudes, it is unwise for the teacher to attempt to change their feelings by cajoling or scolding them. She can achieve the proper effect by helping them obtain constructive experiences.
To illustrate, first grade pupils afraid of policemen will probably alter their attitudes after a classroom chat with the neighborhood officer in which he explains how he protects them. In the same way, a class of older children can develop attitudes through discussion, research, outside reading and all-day trips.
Finally, a teacher must constantly evaluate her own attitudes, because her influence can be deleterious if she has personal prejudices. This is especially true in respect to controversial issues and questions on which children should be encouraged to reach their own decisions as a result of objective analysis of all the facts.

The passage specifically states that ______.

A.direct experiences are more valuable than indirect ones

B.whatever attitudes a child learns in school have already been introduced at home

C.teachers should always conceal their own attitudes

D.teachers can sometimes have an unwholesome influence on children

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