小刚在参观工厂时看到工人们把一些梯形模具加工成等腰梯形,检测时小刚发现,每个检测

题型:解答题

问题:

小刚在参观工厂时看到工人们把一些梯形模具加工成等腰梯形,检测时小刚发现,每个检测员根据产品及工具的具体情况,所采用的方法都不同,其中有两人用了以下的方法:检测员甲:测量上底中点到下底两端的距离,距离相等的就是合格的;测量员乙:测量下底中点到两腰的距离,距离相等的就是合格的.小刚很快便明白了其中的道理,你能说出其中的道理吗?画出图形,并说明理由.

考点:梯形,梯形的中位线全等三角形的性质
题型:解答题

我们看到的日月星辰的东升西落是因为[ ]

A.地球绕太阳自西向东公转

B.地球绕太阳自东向西公转

C.地球绕地轴自西向东自转

D.地球绕地轴自东向西自转

题型:解答题

关于施工进度管理,说法错误的是( )。

A.一般情况下,工程师每月应检查一次进度计划执行情况

B.工程师不对确认后的改进措施效果负责

C.如果修改后的进度计划不能按期完工,承包人应承担责任

D.实际进度超前,则无需修改进度计划

题型:解答题

阅读理解

     "I'd be better off dead." he said, without any hesitation. Hearing those words come out of my best

friend's mouth tore my heart apart. He has repeated that phrase more than once, and my mind

continually plays it over like a voice recording.

     I met him about three years ago. After knowing me for six months, he told me about his struggles

with depression. Sadness was not the only feeling that came over me; I was shocked. He seemed so

outgoing and happy all the time. I soon learned that he was hurt physically and mentally as a young child,

causing him to have the thought of killing himself.

     He refuses to talk to others about his depression because he now distrusts adults, especially those in

his family. However, he feels as if I understand him and that I know the right words to speak. Therefore,

when it comes to helping him, convenience is not in my vocabulary. It does not matter where I am or

what I am doing, for he always comes first.

     Many students at his school laugh at him when they notice scars on his arms from cutting. As he sees

it, other kids have every right to make fun of him. But no one holds such a right, so I encourage him to

ignore the heartless kids who treat him badly. When he feels the weight of judging eyes or hateful voices,

I always remind him that I care about him unconditionally. Just hearing me say I will always be his best

friend seems to give him the safety he needs to keep on going.

     My best friend once told me that if he had not had me, he would not be alive. He said that my

encouraging words helped him not to take his life. Our friendship has taught me that a single kind word

can influence someone’s life. Life is not easy for every one, which makes me strongly believe in the

necessity of encouragement.

1. According to the first paragraph, hearing his friend's words, the author felt______.

A. puzzled

B. painful

C. frightened

D. hopeless

2. By saying "convenience is not in my vocabulary", the author means ______.

A. he is always ready to help his friend

B. he hardly spares time to help his friend

C. he has no good excuse for refusing his friend

D. he is not good at communicating with his friend

3. The author's friend got into depression mainly because __________.

A. he lived without his parents

B. he had poor health

C. he received little care at school

D. he had a terrible childhood

4. What is the best title for the passage?

A. I enjoy friendship

B. My friend and I

C. I believe in encouragement

D. The story of my friend

题型:解答题

国家旅游局发布《旅行社质量保证金暂行规定》及其实施细则的时间是()。

A.1991年

B.1993年

C.1995年

D.1997年

题型:解答题

前减振器左右两侧减振力不平衡,在不平路面行驶时,容易发生()。

A.行驶颠簸过度

B.行驶跑偏

C.转向不灵

D.后轮甩动

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