预应力工程中,锚具的封闭保护应符合设计要求;当设计无具体要求时,应符合的规定有()

题型:多项选择题

问题:

预应力工程中,锚具的封闭保护应符合设计要求;当设计无具体要求时,应符合的规定有()

A.应采取防止锚具腐蚀和遭受机械损伤的有效措施

B.凸出式锚固端锚具的保护层厚度不应大于50mm

C.处于正常环境时,外露预应力筋的保护层厚度不应小于20mm

D.处于易受腐蚀的环境时,外露预应力筋的保护层厚度不应小于50mm

E.凸出式锚固端锚具的保护层厚度不应小于50mm

考点:质量员质量员综合练习质量员综合练习题库
题型:多项选择题
已知y=f(x)是定义在R上的函数,且对任意x∈R,都有:f(x+2)=
1-f(x)
1+f(x)
,又f(1)=
1
2
,f(2)=
1
4
,则f(2007)=______.
题型:多项选择题

     When Mary Moore began her high school in 1951,her mother told her,"Be sure and take a t

yping course so when this show business thing doesn't work out,you'll have something to rely on."

Mary responded in typical teenage fashion.From that moment on,"the very last thing I ever

thought about doing was taking a typing course," she recalls.

     The show business thing worked out,of course.In her career,Mary won many awards.Only

recently,when she began to write Growing Up Again,did she regret ignoring her mom," I don't

know how to use a computer," she admits.

     Unlike her 1995 autobiography,After All, her second book is less about life as an award

winning actress and more about living with diabetes (糖尿病).All the money from the book is

intended for the Juvenile Diabetes Research Foundation (JDRF),an organization she serves as

international chairman."I felt there was a need for a book like this," she says." I didn't want to

lecture,but I wanted other diabetics to know that things get better when we're self?controlled

and do our part in managing the disease."

     But she hasn't always practiced what she teaches.In her book,she describes that awful day,

almost 40 years ago,when she received two pieces of life changing news.First,she had lost the

baby she was carrying,and second,tests showed that she had diabetes.In a childlike act,she left

the hospital and treated herself to a box of doughnuts (甜甜圈).Years would pass before she

realized she had to grow up again-and take control of her diabetes,not let it control her.Only

then did she kick her three pack a day cigarette habit,overcome her addiction to alcohol,and

begin to follow a balanced diet.

     Although her disease has affected her eyesight and forced her to the sidelines of the dance

floor,she refuses to fall into self pity."Everybody on earth can ask,'why me' about something

or other," she insists."It doesn't do any good.No one is immune (免疫的) to heartache,pain,

and disappointments.Sometimes we can make things better by helping others.I've come to

realize the importance of that as I've grown up this second time.I want to speak out and be as

helpful as I can be."

1.Why did Mary feel regretful? _____

A.She didn't achieve her ambition.

B.She didn't take care of her mother.

C.She didn't complete her high school.

D.She didn't follow her mother's advice.

2.We can know that before 1995 Mary. _____

A.had two books published

B.received many career awards

C.knew how to use a computer

D.supported the JDRF by writing

3.Mary's second book Growing Up Again is mainly about her. _____

A.living with diabetes

B.successful show business

C.service for an organization

D.remembrance of her mother

4.When Mary received the life?changing news,she. _____

A.lost control of herself

B.began a balanced diet

C.tried to get a treatment

D.behaved in an adult way

5.What can we know from the last paragraph? _____

A.Mary feels pity for herself.

B.Mary has recovered from her disease.

C.Mary wants to help others as much as possible.

D.Mary determines to go back to the dance floor.

题型:多项选择题

在堤外无滩且易受水冲刷的重要堤段,常采用( )。

A.坡式护岸
B.墙式护岸
C.坝式护岸
D.平顺护岸

题型:多项选择题

执行指令属于特殊指令。

题型:多项选择题

未按照规定将提供服务的车辆、驾驶员相关信息向服务所在地出租汽车行政主管部门报备的由县级以上出租汽车行政主管部门和价格主管部门按照职责责令改正,对每次违法行为处以10000元以上30000元以下罚款;情节严重的,处以30000元以上50000元以下罚款。

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