按弹性方法计算现浇单向肋梁楼盖时，对板和次梁采用折算荷载来进行计算，这是因为考虑到

（1）在“探究小车速度随时间变化的规律”的实验中，打点计时器使用的交流电的频率为50Hz，记录小车运动的纸带如图所示，在纸带上选取．0、1、2、3、4、5六个计数点，相邻的两个计数点之间还有四个点没有画出．纸带旁并排放着带有最小刻度为毫米的刻度尺，零点跟计数点“0”对齐．由图可以读出1、3、5三个计数点跟“0”点的距离x₁、x₃、x₅．______．

（2）电火花打点计时器工作时使用______（选填“交流”或“直流”）电源，工作电压______V，相邻两个计数点的时间间隔为______s．

（3）由下表可知

距离	x1	x2	x3
测量值/cm	1.20cm	______cm	______cm

则小车通过计数点2的瞬时速度为______m/s；通过计数点4的瞬时速度为______m/s；小车的加速度是______m/s²．（结果保留两位有效数字）

综合调查分析要求建立明确的判断管理问题的标准、认真查清现状、采用正确的分析方法做出独立判断、查清问题对客户经营的影响、项目组每个咨询人员均应参加综合调查。以下描述中，属于“明确的判断管理问题的标准”的是( )。

A．可以作为判断是否做错了的标准，以及时进行纠正和纠偏

B．咨询专家针对企业问题应用直接比较得出客观判断

C．参照同行相关优秀的过程和做法，以改进提升自身的水平

D．对客户各层次人员的观念进行引导和提升，以逐步改变其行为

E．需要应用新思路和新理念进行创新，创新别人没有的方法

轧后控冷的目的是什么（）

A．使钢易加工

B．钢材易矫直

C．保留位错组态

D．细化晶粒

During a state of deep relaxation, several physiological changes take place in the body: the body’s oxygen consumption is reduced; the heart beat decreases; muscle tension and sweating ease, and there is decreased sympathetic （交感的） nervous system activity．This restful state not only allows the body to repair and restore itself, but it has a calming effect on the consciousness．

How to achieve this state of relaxation, however, is a matter of opinion, and in some medical circles, a matter of controversy．A recent report by Dr．David Holmes of the University of Kansas in the journal “American psychologist” said that simply sitting in an armchair has just as many beneficial characteristics for the body as meditation （冥想） does．Researchers of other relaxation techniques disagree．These experts believe that more structured techniques, such as meditation, lead to a condition of deep relaxation．

The debate goes on, but one thing appears to be clear: the relaxation response can be reached by a number of methods, and the methods themselves are not as important as getting there．One day, one method may work best; on another day, an alternative method may be more appropriate．Once you are aware of all the methods, you can find the one that works best on you．

Some of the relaxation techniques are meditation, auto analysis and progressive muscle relaxation response．More than just sitting quietly in a chair, they have the added benefit of structure and discipline, and for these reasons appear to be more effective for most individuals．

小题1:According to the passage, which of the following statements is NOT true when a person is in a state of deep relaxation?

A．The body takes in less oxygen．

B．The heart beats less frequently．

C．Muscles become tense and the body sweats easily．

D．The consciousness becomes more or less calmed．小题2:People seem to agree that ____．

A．sitting in an armchair benefits a person as meditation does

B．structured relaxation techniques are more beneficial for a person

C．to achieve a state of deep relaxation is possible through various means

D．what people are all struggling for is a state of deep relaxation小题3:In the third paragraph, the phrase “getting there” means _____．

A．arriving at one’s destination

B．getting what one wants most

C．finding out a suitable relaxation technique

D．reaching a state of deep relaxation小题4:The author’s attitude toward relaxation discussed in the passage is best described as ______．

A．sceptical

B．objective

C．optimistic

D．critical

下列（）属于特殊工种和特殊作业人员。

A.瓦工

B.搅拌工

C.钢筋工

D.电工