依据《建筑结构荷载规范》中确定可变荷载代表值应采用（）年设计基准值。A、90B、30

照样子在括号里填上适当的词语。  

反复(研究)  

反复(       )  反复(       )  反复(       ) 

改变(方向)

改变(       )  改变(       )  改变(       ) 

下图提示的心电图改变为（）

A.左心室肥大

B.房性期前收缩

C.交界性期前收缩

D.室性期前收缩

E.心房颤动

案情：昆明花商刘某委托运输个体户张某开车运输一批鲜花到北京，由于刘某与张某长期有生意来往，又加上刘某这几天生意比较忙，一直无法脱身，于是刘某拟定了一个价格范围，委托张某将鲜花按时运到指定地点卖给北京的客户，价格由张某根据当时花的状况在刘某拟定的价格范围内自由决定。刘某给予张某运输费3030元，并且约定抽取卖花所得的4%给张某作报酬。 在张某开车往北京运输鲜花的途中，在安徽境内中途停车吃饭，谁料饭店的酒菜存在卫生问题，导致张某食物中毒，张某被紧急送往医院抢救，等张某完全苏醒时已是第二天深夜。张某考虑到鲜花保鲜期较短，如果不及时运输，会导致鲜花无法在刘某给定的价格范围内出售，而自己身体虚弱无法开车进行长途运输，与刘某联系得知刘某已赴泰国，10天后才能回国。于是，张某找了一个当地的运输公司委托其将鲜花运到北京指定地点卖给北京的客户并告知了其价格范围，张某交纳了运输费2000元并约定运输公司可以抽取卖花所得的2%作为报酬。 虽然运输公司及时起运，但由于已经耽搁了两天，运到时鲜花已经很不新鲜，北京客户要求降价出售，运输公司联系上张某，张某考虑到鲜花情况，答应降价出售。结果以刘某给定的最低价格的一半价格出售。事后，运输公司扣除了卖花所得款项的2%后将款项交给了张某，张某又从中扣除了卖花所得款项的2%后将款项交给了刘某。刘某计算了一下，其损失将近5000元。故刘某提出，原来说按指定价格范围卖出，按比例提成。现在卖价只有给定最低价格的一半，张某就不应再拿4%的报酬。张某则认为延误是由于饭店的酒菜存在卫生问题造成的，自己并没有过错，自己当然应当拿4%的报酬。 问题：

刘某委托张某代为销售鲜花，而张某在中途将鲜花委托运输公司代为销售，未经刘某同意，张某是否超越了代理权为什么

阅读理解。

     Fear is an emotion like others such as happiness, anger, hurt, sadness. We need emotions to process

information we receive and decide how to respond. Being afraid of fast cars, for example, is something

that might protect us from harm Being afraid of the consequence of a choice may prevent us getting into

trouble.

     Fears in young children commonly center on certain animals like snakes or big dogs. Fears are caused

often because of experiences or ideas expressed by others, and at times, the media. Many normal fears

during the early years, like men with beards, or large dogs, disappear with age. Those relating to personal

failure and ridicule (嘲笑) remain through adulthood and may need special help to overcome.

     Children's fears are often small, but that doesn't mean they should be dismissed as trivial (微不足道的).

They need to be recognized and accepted as real for that child. Only when we help children understand their

fears can they grow normally in their ability to settle them.

     Research shows that as a child grows up, the center of his fears changes a lot. Things like divorce, a

teacher who "shouted at me", people with guns, bullies, big boys, or "making fun of me" top the list of

childhood fears.

     We cannot always prevent these experiences from happening, but it is essential that children be allowed

to freely express their emotions without judgment. Sympathy and a caring listener will help ease pain of these

fears. Read books and stories to your child about children who have experienced similar fears. This helps

children talk about their fears and find ways to cope. With all emotions, fears become less of a problem for

children as they gain self-confidence and they find that fear is normal and can be dealt with.

1. According to Paragraph 2, we can know that fears in young children _____. [ ]

A. only center on frightening animals

B. are not born but learned

C. can make sure of their safety

D. need special help to deal with

2. Children's fears are often ignored because _____. [ ]

A. they exist widely in the world

B. they will disappear with age

C. people thought they are not worth considering

D. they are often imaginary

3. In dealing with children's fears, the final goal of the parents is to _____. [ ]

A. stop unpleasant experiences happening to children

B. let children know about the nature of fear

C. create an environment where there is nothing to fear

D. develop children's ability to treat their fears on their own

4. From the passage we can learn that _____. [ ]

A. some childhood fears may have a lasting influence

B. children should avoid the media to reduce their fear

C. fears can be judged according to the environment

D. children with similar fears can communicate easily

5. What's the best title for this passage? [ ]

A. Children's fears.

B. How to overcome children's fears.

C. The kind of children's fears.

D. The bad effects of fears.

(二)
某公路路面工程，里程桩号为K4+100～K28+100，总长度为24km。路面结构层分为级配砾石底基层、水泥稳定碎石基层、沥青面层(单层)。建设单位希望施工单位尽可能用最短时间完成该路面工程施工。施工单位根据自己的能力，准备组织两个路面施工队平行施工以完成该路面工程。每个路面施工队的施工能力相同，各完成12km。根据以往类似工程的施工经验，底基层专业队组(班组)施工进度(速度)200m/d(已经包含各种影响，下同)；水泥稳定碎石基层专业队组施工进度150m/d，养护时间至少7d，所需工作面的最小长度为1000m；沥青面层专业队组施工进度为160m/d，所需最小工作面长度为1200m。要求施工单位用最快方式，根据上述给定条件组织路面工程线性流水施工。
施工单位编制了详细的施工组织设计和施工平面布置图，提交建设单位，建设单位对此进行了评价。
问题：