MRPⅡ是通过计划的及时滚动来控制整个生产过程的，一般只能实现______控制。A．

如图所示，长为L、质量为2.0kg的长木块A置于光滑水平面上，在A的右端0.50m处有竖直的矮墙（矮于A木块的高度），A与矮墙碰后与墙粘在一起，并保持静止；在A的上表面左端放一质量为1.0kg的铁块B，B的大小不计，B与A的动摩擦因数为0.20。作用在B上的水平向右的拉力F大小为3.2N，在F的作用下A、B都从静止开始运动。求

（1）在A刚碰墙前，A、B运动的加速度分别多大？

（2）若在A刚要碰撞矮墙时，B还在A上面，则此时A、B运动的速度分别多大？

（3）若在A碰撞矮墙时立即撤去拉力F，为使B始终不从A上表面脱落，木块A的长度L至少多长？                                          

《建设工程监理规范》规定，（）属施工阶段的监理资料。

A．施工组织设计

B．勘察设计文件

C．工程定位测量资料

D．建筑物沉降观测记录

对于多层厂房，在其结构形式一定的条件下，若厂房宽度和长度越大，则经济层数和单方造价的变化趋势是( )。

A．经济层数降低，单方造价随之相应增高

B．经济层数增高，单方造价随之相应降低

C．经济层数降低，单方造价随之相应降低

D．经济层数增高，单方造价随之相应增高

2003年1月1日起生效的《中华人民共和国政府采购法》所建立的政府采购制度的核心特点是( )

A．有偿采购

B．竞争性指标采购

C．分散采购

D．灵活采购

When we think of leadership, we often think of strength and power. But what are these really, and how do they operate
Leadership today is not about forcing others to do things. If this is even possible, it is short term, and tends to backfire. If you order someone to do something against their will, they may do it because they feel they must, but the anger they feel will do more harm in the long term. They will also experience fear.
Fear causes the thinking brain to shut down, making the person unable to function at his or her best. If they associate you with this emotion of fear, they will become less functional around you, and you will have succeeded in not only shooting yourself in the foot, but possibly making a very good employee or partner unable to perform effectively. Fear has no place in leadership.
The way we influence people in a lasting way is by our own character, and our understanding and use of emotion. We can order someone to do something, which may be part of the workday; or we can employ them at the emotional level, so they become fully devoted to the projects and provide some of their own motivation. Today’s workplace is all about relationships as a human being as well as a worker. Everyone produces just a bit more for someone they like. Leaders understand the way things work. They know the paycheck is not the single most motivating factor in the work life of most people.
The true strength of leadership is an inner strength that comes from the confidence of emotional intelligence—knowing your own emotions, and how to handle them, and those of others. Developing your emotional intelligence is the single best thing you can do if you want to develop your relationships with people around you, which is the key to the leadership skills.

Which of the following is TRUE according to the passage

A．People tend to associate leadership with fear.
B．Working conditions affect people’s physical health.
C．Good relationship is the key to business success.
D．Smart people are more functional in the workplace.