B市路桥公司承接了西南丘陵地区某二级公路第二合同段的施工,合同段路线长14.5kin,其中K18+300~K18+800段为软土地基,采用袋装砂井处;K20+100~K26+300为膨胀土路段,采用膨胀土作为填料,边坡填筑时采用非膨胀土作为封层,路堑段边坡分两次开挖到设计线,最后封闭。该路段设有排水沟200m,暗沟62m,渗沟43m,渗井7个。路基排水设施施工中主要控制了其测量放样、材质和砌筑工艺,测量放样主要包括排水设施的位置、几何尺寸及形式的控制。施工过程中严格控制排水设施的砌筑及伸缩缝、沉降缝、排水层、反滤层、封闭层等的施工质量。 场景中必须设置排水层、反滤层和封闭层的排水设施是()。
A. 排水沟
B. 暗沟
C. 渗沟
D. 渗井
Step Back in Time Do you know that we live a lot longer now than the people who were born before us One hundred years ago the average woman 1ived to be 45.But now,she Can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don’t slip back into bad habits,let’s have a look at what life was like 100 years ago. Families had between 15 and 20 children,athough many babies didn’t live long.Children suffered from lots of diseases,especially rickets(佝偻病)and scurvy(坏血病),which are both caused by bad diets.This is because many families were very poor and not able to feed their children well. Really poor families who lived in crowded cities like London and Manchester often slept standing up, bending over a piece of string,because there was no room for them to lie down. People didn’t have fridges until the 1920s.They kept fresh food cold by storing it on windowsills(窗台板),blocks of ice,or even burying it in the garden. Some children had to start work at the age of seven or eight lo earn money for their parents.If you had lived 100 years ago,you might well be selling matchsticks(火柴杆)(a job done by many children)or working with your dad by now. Poor diets can lead to such diseases as rickets and scurvy.()
A. Right
B. Wrong
C. Not mentioned
某一级公路,全长75km,设计车速80km/h,路线通过地区气候干燥,路面底基层为填隙碎石,基层为水泥稳定碎石,面层为沥青混凝土。填隙碎石的施工工艺包括:①运输和摊铺粗碎石;②撒布填隙料;③初压;④再次撒布填隙料;⑤振动压实。施工完后,拟检测如下项目:压实度、弯沉值、平整度、构造深度等。 本路段底基层施工中,撒铺填隙料时的松铺厚度应为()cm。
A. 2.5~3.0
B. 4.0~4.5
C. 4.5~5.0
D. 5.0~5.5
第三篇 Florence Nightingale Florence Nightingale was born in Florence,Italy,while her wealthy English parents were traveling in Europe.As a child,she traveled to many places with her family and learned how to speak several languages. When Nightingale was 17,she told her family that she was going to help sick people.Her parents did not approve,but Nightingale was determined. She traveled to hospitals all over Europe.She saw that doctors were working too hard.She saw that patients died because they did not get enough care.Nightingale felt that women could be doing more to help doctors take care of sick people. Nightingale knew that in order for nurses to do more,they needed special training in how to take care of sick people.Nightingale went to a hospital in Germany to study nursing.Then she returned to London and became the head of a group of women called Gentlewomen During Illness.These women cared for sick people in their homes. In 1854.England was fighting a war with Russia.№reporters wrote about the terrible conditions in the hospitals that cared for the wounded.People demanded that something be done about it.A leader of the government asked Florence Nightingale to take some nurses into the war hospitals.So,in November 1 854,Nightingale finally got to work in a hospital. She took along 3 8 nurses whom she had trained herself. At first.the doctors on the battlefields did not want Nightingale and her nurses in their hospitals.They did not believe that women could help.But in fact,the nurses did make a difference.They worked around the clock,tending the sick.Thanks to their hard work,many wounded soldiers survived. After the war, Nightingale and her nurses were treated 1ike heroes.。Finally,in 1 860,she started the Nightingale School for Nurses.In time,thanks to Florence Nightingale,nursing became an important part of medicine. It was not until the War with Russia that Nightingale()
A. got to work in a hospital.
B. began to study nursing.
C. started to care for sick people in their homes.
D. became the head of Gentlewomen During Illness