“无理数是无限小数,而16(=0.16666…)是无限小数,所以16是无理数.”

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问题:

“无理数是无限小数,而
1
6
(=0.16666…)
是无限小数,所以
1
6
是无理数.”这个推理是______推理(在“归纳”、“类比”、“演绎”中选择填空)
考点:演绎推理
题型:填空题

观察图片,下列相关的叙述正确的是

[ ]

A.图①反映了中国古代在地震观测方面取得了突出成就 B.图②反映出中国为和平利用核能源作出了卓越的贡献 C.图③反映出“ * * ”促进了中国高新科技的发展 D.图④反映出中国在载人航天领域已达到国际领先水平

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伴性遗传

题型:填空题

阅读理解

                                                      When milk arrived on the doorstep

     When I was a boy growing up in New Jersey in the 1960s, we had a milkman delivering milk to our

doorstep.His name was Mr.Basille.He wore a white cap and drove a white truck. As a 5yearold boy, I

couldn't take my eyes off the coin changer fixed to his belt.He noticed this one day during a delivery and

gave me a quarter out of his coin changer.

     Of course, he delivered more than milk. There was cheese, eggs and so on.If we needed to change

our order, my mother would pen a note- "Please add a bottle of buttermilk next delivery" -and place it in

the box along with the empty bottles.And then, the buttermilk would magically(魔术般)appear.

     All of this was about more than convenience. There existed a close relationship between families and

their milkmen. Mr. Basille even had a key to our house, for those times when it was so cold outside that

we put the box indoors, so that the milk wouldn't freeze. And I remember Mr. Basille from time to time

taking a break at our kitchen table, having a cup of tea and telling stories about his delivery.

     There is sadly  no home milk delivery today. Big companies allowed the production of cheaper milk,

thus making it difficult for milkmen to compete(竞争). Besides, milk is for sale everywhere, and it may

just not have been practical to have a delivery  service.

     Recently, an old milk box in the countryside I saw brought back my childhood memories. I took it

home and planted it on the back porch(门廊). Every so often my son's friends will ask what it is. So I

start telling stories of my boyhood, and of the milkman who brought us friendship along with his milk.

1. Mr. Basille gave the boy a quarter out of his coin changer ________.

A. to show his magical power

B. to pay for the delivery

C. to satisfy his curiosity

D. to please his mother

2. What can be inferred from the fact that the milkman had the key to the boy's house?

A. He wanted to have tea there.

B. He was a respectable person.

C. He was treated as a family member.

D. He was fully trusted by the family.

3. Why does home milk delivery no longer exist?

A. Nobody wants to be a milkman now.

B. It has been driven out of the market.

C. Its service is getting poor.

D. It is forbidden by law.

4. Why did the author bring back home an old milk box?

A. He missed the good old days.

B. He wanted to tell interesting stories.

C. He needed it for his milk bottles.

D. He planted flowers in it.

题型:填空题

患者血浆PT延长,蝰蛇毒时间(RV-VT)正常,下列哪一项正确()。

A.因子Ⅶ和Ⅴ缺乏

B.因子Ⅶ和Ⅹ缺乏

C.因子Ⅹ缺乏

D.因子Ⅶ缺乏

E.因子Ⅶ和PF3缺乏

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收益法的本质是以房地产的未来收益为导向来求取房地产的价值。( )

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