直接供给设备电机运行的电源,一般叫动力电源,通常是() A.直流电380伏 B.交流

题型:单项选择题

问题:

直接供给设备电机运行的电源,一般叫动力电源,通常是()

A.直流电380伏

B.交流电380伏

C.直流电220伏

D.交流电220伏

考点:饲料加工员饲料加工员题库
题型:单项选择题

空气中的氧气最后被人体的骨骼肌细胞吸收之前,必须经过下列哪些系统的运输?(  )

A.呼吸系统

B.消化系统

C.循环系统

D.内分泌系统

题型:单项选择题

如果影响大气质量的重点是气象因素和工业生产工艺过程,那么今后大气污染综合整治的方向和重点就应该从()等方面考虑。

A.普及型煤、集中供热

B.如何结合工业布局调整

C.合理利用大气自净能力和加强工艺技术改造

D.提高除尘效率

E.强化工业尾气治理和管理

题型:单项选择题

副溶血性弧菌的致病因子包括()

A.黏附因子

B.胞壁

C.类脂A

D.脂多糖

E.蛋白质

题型:单项选择题

阅读理解

    It was Molly's job to hand her father his brown paper lunch bag each morning before he headed off

to work.

     One morning, in addition to his usual lunch bag, Molly handed him a second paper bag.This one was

worn and held together with staples (书钉).

     "Why two bags?" her father asked."The other is something else, " Molly answered."What's in it?""Just

some stuff (东西). Take it with you."

     Not wanting to discuss the matter, he put both sacks into his briefcase, kissed Molly and rushed off.

At midday he opened Molly's bag and took out the contents:two hair ribbons (丝带), three small stones,

a plastic dinosaur, a tiny sea shell, a small doll, and 13 pennies...The busy father smiled, finished eating,

and swept the desk clean into the wastebasket, Molly's stuff included.

      That evening, Molly ran up behind him as he read the paper."Where's my bag?""What bag?""The one

I gave you this morning.""I left it at the office, my dear.""I forgot to put this note in it, " she said."And,

besides, Daddy, the things in the sack are the things I really like.I thought you might like to play with

them.You didn't lose the bag, did you, Daddy?""Oh, no, " he said, lying."I just forgot to bring it home.

I'll bring it tomorrow."While Molly hugged her father's neck, he unfolded the note that read, "I love you,

Daddy." Molly had given him her treasures-all that a 7yearold held dear.

      Love was in a paper bag, and he missed it-not only missed it, but had thrown it in the wastebasket.

So he went back to the office.Just ahead of the night janitor (看门人), he picked up the bag from the

wastebasket.He put the treasures inside and carried it home carefully.The bag didn't look so good, but

the stuff was all there and that's what counted.

     After dinner, he asked Molly to tell him about the stuff in the sack.It took a long time to tell.

     Everything had a story or a memory.

     "Sometimes I think of all the great times in this sweet life." he thought.We should all remember that it's

not the destination that counts in life, but the journey.That journey with the people we love is all that

really matters.It is such a simple truth but it is so easily forgotten.

1. Why did Molly give her father a second bag?

A. She didn't want to keep the things in the Bag.

B. She hoped those things would bring happiness to her father.

C. She wanted to remind her father of the stories behind the things.

D. She enjoyed playing with her father.

2. How did Father deal with the bag after he opened it?

A. He kept it in the drawer.

B. He took it back home.

C. He threw it into the wastebasket.

D. He put it on his table.

3. After Father heard what his daughter said, he felt________.

A. regretful  

B. surprised

C. sad  

D. satisfied

4. Which of the following is the most suitable title of the passage?

A. An Important Journey 

B. Two Bags

C. Father and Daughter  

D. Love in a Paper Bag

题型:单项选择题

渴不欲饮,常为何证的表现

A.饮食伤胃

B.胃阴亏耗

C.脾胃虚寒

D.瘀血停胃

E.湿热中阻

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