通常在其它条件不变时,装入量增多,枪位应()。A.增高 B.降低 C.不变 D.都不

题型:单项选择题

问题:

通常在其它条件不变时,装入量增多,枪位应()。

A.增高

B.降低

C.不变

D.都不对

考点:炼钢工转炉炼钢工考试转炉炼钢工考试题库
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车辆车钩缓冲装置必须具有()。

A.三态作用

B.足够的安全作用

C.连接、牵引和缓冲作用

D.性能可靠、作用灵活的作用

题型:单项选择题

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.

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61岁男性,缺失,来院就医,口内检查,余留牙牙周组织健康,无松动,无倾斜也未见明显倒凹,牙体预备后取模做整铸支架可摘局部义齿修复

避免在制作可摘局部义齿中损伤模型,灌注工作模型的材料最好采用()

A.磷酸盐

B.琼脂

C.普通石膏

D.硬石膏

E.超硬石膏

题型:单项选择题

如何进行会计差错更正的会计处理?

题型:单项选择题

根据我因《节约能源法》,能源生产经营单位不得()。

A.向本单位职工无偿提供能源

B.向本单位职工低价提供能源

C.对能源消费实行包费制

D.对能源消费实行协价

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