不同的离心方法选择的离心时间不同,对于等密度梯度离心而言是() A.某种颗粒完全上浮

题型:单项选择题

问题:

不同的离心方法选择的离心时间不同,对于等密度梯度离心而言是()

A.某种颗粒完全上浮的时间

B.某种颗粒完全下沉的时间

C.全部组份颗粒完全到达各自的等密度点的平衡时间

D.全部组份沉降在离心管的底部

E.某种颗粒处于离心管的中央的时间

考点:临床医学检验临床免疫技术检验仪器学检验仪器学题库
题型:单项选择题

用括号里的词的适当形式填空。

1. We'll have fun __________( learn ) English this term.

2. My mother __________(wash) clothes when I got home from school.

3. -What were you doing at 7:00 yesterday evening?

    -I __________ (study) for a test.

4. -I wonder how to use the washing machine.

    -That's easy,I __________(show) you later .

5. __________ the dog __________(lie) under the tree when you passed?

题型:单项选择题

第II卷非选择题(共45分)
V. Task-based reading 任务型阅读 1’ * 10 = 10’
请认真阅读下面短文,并根据所读内容在文章后图表中的空格里填入最恰当的单词。注意:每空不超过1个单词。
Oh, the things that I should see if I had the power of sight for just three days!
The fast day would be a busy one. I should call to me all my dear friends and look long into their faces, imprinting (刻上) upon my mind the outward (外表的, 表面的) evidences of the beauty that is within them, I should let my eyes rest, too, on the face of a baby, so that I could catch a vision of the eager, innocent (天真无邪的) beauty which precedes (在…之前, 先于) the individual's consciousness (意识) of the conflicts which life develops.
And I should like to look into the loyal, trusting eyes of my dogs--the serious, clever little Scottie, Darkie, and the strong, understanding Great Dane, Helga, whose warm, tender, and playful friendships are so comforting to me.
On that busy first day I should also view the small simple things of my home. I want to see the warm colors in the carpets under my feet, the pictures on the walls, the lovely small furniture that transforms a house into home. My eyes would rest respectfully on the books in dot-raised type which I have read, but they would be more eagerly interested in the printed books which seeing people can read, for during the long night of my life the books I have read and those which have been read to me have built themselves into a great shining lighthouse, showing me the deepest channels of human life and the human spirit.
In the afternoon of that first seeing day, I should take a long walk in the woods and intoxicate (使陶醉) my eyes on the beauties of the world of Nature trying desperately (拼命地) to absorb in a few hours the vast brilliance (才华, 才智) which is presenting itself to those who can see. On the way home from my woodland trip, my path would lie close to a farm so that I might see the patient horses ploughing (耕地) in the field and the peaceful content of men living close to the soil. And I should pray for the glory of a colorful sunset.
When darkness had fallen, I should experience the double delight of being able to see by man-made light which the genius of man has created to extend the power of his sight when Nature brings darkness.
In the night of that first day of sight, I should not be able to sleep, so full would be my mind of the memories of the day!
(by Helen Keller)
The first day what Helen Keller would do (66) _________ given three days to see
In the morning
●  Look long into the faces of all her dear friends so that she would (67) _______ upon her mind the outward (外表的, 表面的) the evidences of their beauty that is within them
●  Catch a vision of the eager, innocent beauty of a baby by resting her eyes on his face.
●  Look into the loyal, trusting eyes of her (68) _________
●  View the small simple things of her home such as warm colors, pictures, trifles.
●  Fix her eyes with (69)_____ on the books in raised type she has read and the printed books for seeing people with interest.
In the afternoon
● (70) _________ in the woods; intoxicate (使陶醉) her eyes on the beauties of the world of Nature and absorb in a few hours the vast brilliance of the world.
●  Walk past a farm, see the (71) ________ horses ploughing (耕地) in tile field and the peaceful content of men living close to the soil.
●  Pray for the glory of a colorful sunset.
In the (72)_______
(73) ___________the double delight of being able to see, helped by man-made light.
At night
I should not be able to sleep, so full would be her mind of the (74) _________ of the day!
From the passage we know in spite of her blindness Helen Keller' was still full of love for (75) ____________.
题型:单项选择题

在下列优质碳素结构钢中,属于中碳钢的有()。

A.20

B.25

C.30

D.35

E.60

题型:单项选择题

在编制投标报价时,如果工程量清单中某项目未填写单价和合价,则( )。

A.该标书将被退回投标单位重新填

B.写该标书将被视为废标

C.该项目单价和合价将参照其他投标单位的平均报价计算

D.该项目价款将不予单独支付,所需费用已经包括在其他单价和合价中

题型:单项选择题

同一学年内,申请并获得国家助学金的同学,可以申请什么奖学金?()

A.只能申请国家奖学金

B.只能申请国家励志奖学金

C.可申请国家奖学金或国家励志奖学金

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