问题 问答题

磨机正常运转时应怎样操作?

答案

参考答案:

(1)定时巡回检查机械设备的运转情况,并做好设备的维护保养工作。

(2)根据出磨产品的细度情况,调整喂料量,要做到喂料均匀。

(3)检查出磨物料和通风管道气体温度,适当调整喂料量。

(4)根据磨机台时产量等技术经济指标及有关数据分析磨机的作业情况。及时采取措施,达到质量好,产量高,消耗低等目的。

单项选择题

Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (51) to how they can be best accommodate such changes. Growing bodies need movement and (52) , but not just in ways that emphasize competition. Because they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (53) that comes from achieving success and knowing that their accomplishments are admired by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (54) to plan activities in which there are more winners than losers, for example, publishing newsletters with many student-written book reviews, (55) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide multiple opportunities for leadership, as well as for practice in successful (56) dynamics. Making friends is extremely important to teenagers, and many shy students need the (57) of some kind of organization with a supportive adult (58) visible in the background.

In these activities, it is important to remember that the young teens have (59) attention spans. A variety of activities should be organized (60) participants can remain active as long as they want and then go on to something else without feeling guilty and without letting the other participants down.

58().

A.particularly 

B.barely 

C.definitely 

D.rarely

判断题