何为电力负荷?电力负荷按能量消耗如何分类?

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问题:

何为电力负荷?电力负荷按能量消耗如何分类?

考点:电气安全知识竞赛电气安全知识竞赛题库
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Li Lei knows two foreign languages. He can speak _______ English______ French.

A.either…or

B.neither…nor

C.both…and

D.so…that

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患者,女,21岁,患再生障碍性贫血1年,现住院治疗,近日左侧颊黏膜显著充血、水肿、灼痛。检查见充血表面有较厚假膜,致密而光滑,较易拭去,遗留渗出糜烂面。周围有明显炎症,唾液增多,口臭。区域淋巴结肿大压痛。全身症状较轻微。涂片可见大量球菌,临床应诊断为下列哪种疾病()。

A.疱疹性龈口炎

B.球菌性口炎

C.扁平苔藓

D.白念珠菌病

E.白斑

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阅读理解

     When my father was dying, I traveled a thousand miles from home to be with him in his last days. It

was far more heartbreaking than I'd expected, one of the most difficult and painful times in my life. After

he passed away I stayed alone in his apartment. There were so many things to deal with.  It all seemed

endless. I was lonely. I hated the silence of the apartment.

    But one evening the silence was broken:I heard crying outside. I opened the door to find a little cat on

the steps. He was thin and poor. He looked the way I felt. I brought him inside and gave him a can of fish. He ate it and then almost immediately fell sound asleep.

    The next morning I checked with neighbors and learned that the cat had been given up by his owner

who'd moved out. So the little cat was there all alone, just like I was. As I walked back to the apartment,

I tried to figure out what to do with him. Having something else to take care of seemed like the very last

thing I needed. But as soon as I opened the apartment door he came running and jumped into my arrns.

It was clear from that moment he had no intention of going anywhere. I started calling him willis, in honor

of my father's best friend.

    From then on, things grew easier. With willis in my lap, time seemed to pass much more quickly. When

the time finally came for me to return home I had to decide what to do about Willis. There was absolutely

no way l would leave without him.

    It's now been five years since my father died. Over the years, several people have commented on how

nice it was of me to rescue the cat. But I know that we rescued each other. I may have given him a home

but he gave me something greater. 

1.  When the allthor first saw the cat, she  ___  

A. was very happy          

B. felt pity for him

C. didn't know what to do

D. was angry at his crying

2. The underlined sentence in the third paragraph suggests that the author   __ 

A. needed something to fill the empty apartment

B. loved to stay alone in the apartment

C. was too busy and tired to keep a cat

D. needed something to take care of to kill time

3. The cat rescued the author by ___   

A. making her feel better in her hard times

B. giving her courage to go on with her life

C. helping her tidy the apartment

D. telling her what life is

4. We can learn from the passage that   __ 

A. Willis was named after his foiTner owner

B. Willis didn't like staying in the apartment

C. the author and Willis were both homeless

D. time passed quickly after the author kept Willis

5. What's the main idea of the passage?

A. A little lonely cat.        

B. A painful experience. 

C. How to take care of animals.

D. What I got from a little cat.

题型:问答题 简答题

下列关于热运动的说法中,正确的是  [ ]

A.热运动是物体受热后所做的运动

B.温度高的物体中的分子做无规则运动

C.单个分子做永不停息的无规则运动

D.大量分子做永不停息的无规则运动

题型:问答题 简答题

SE卷烟机烟枪大压板是给予烟丝束第()次压缩的工作件。

A.1

B.2

C.3

D.4

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