平板阀主要是由阀座、()、闸板、阀盖、传动机构等组成。A、法兰 B、阀体 C、填料压

题型:单项选择题

问题:

平板阀主要是由阀座、()、闸板、阀盖、传动机构等组成。

A、法兰

B、阀体

C、填料压盖

D、连接螺栓

考点:采气工考试采气初级工考试采气初级工考试题库
题型:单项选择题

天文奇观“金星凌日”是在地球上看到金星从太阳面上移过的现象,它的产生和日食的道理相同。如图所示为发生“金星凌日”现象时的示意图,金星的位置应在

A.甲

B.乙

C.丙

D.丁

题型:单项选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多选选项。

To forgive may be great, but no one every said it was easy. When someone has deeply hurt you, it can be extremely difficult to let go of your anger. But forgiveness is possible—and it can be surprisingly beneficial to your physical and mental health.   小题1:    

So how do you start the healing? Try following these steps:

Calm yourself.   小题2:  You just take a couple of breaths and think of something that gives you pleasure: a beautiful scene in nature, someone you love.

Don´t wait for an apology. “Many times the person who hurt you has no intention of apologizing, 小题3:   So if you wait for people to apologize, you could be waiting an awfully long time.

Take the control away from your offender(冒犯者).  小题4: Instead of focusing on your wounded feelings, learn to look for the love, beauty and kindness around you.

小题5:If you understand that person, you may realize that he or she was acting out of ignorance, fear – even love. To gain the same feeling, you may want to write a letter to yourself from your offender’ s point of view.

Don’t forget to forgive yourself. For some people, forgiving themselves is the biggest challenge. But it can rob you of your self-confidence if you don’t do it.

A.There are several ways to forgive and forget.

B.It can help reduce the wearing out of the immune system and allow people to feel more energetic.

C.Recognize the benefits of forgiveness.

D.They may have wanted to hurt you or they just don’t see things the same way.E.Mentally replaying your hurt gives power to the person who caused your pain.

F.Try to see things from the other person’s position.

G.To stop your anger, try a simple stress-management technique.

题型:单项选择题
下面各题能简算的要简算.
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题型:单项选择题

根据摩尔定律(Moore),单块集成电路的集成度平均每()翻一番。

A、8-14个月

B、18-24个月

C、28-34个月

D、38-44个月

题型:单项选择题

何谓全位错请说明在面心立方晶体中肖克莱不全位错和弗兰克不全位错的成因和运动特点。

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