为了明确上消化道出血的病因和部位,可选用哪项检查() A.双气囊三腔管 B.X线钡餐

题型:单项选择题

问题:

为了明确上消化道出血的病因和部位,可选用哪项检查()

A.双气囊三腔管

B.X线钡餐检查

C.胃镜

D.选择性腹腔动脉造影

E.以上都可以

考点:小儿外科学(医学高级)小儿外科强化练习小儿外科强化练习题库
题型:单项选择题

阅读理解

       BEIJING—Chinese Premier Wen Jiabao has visited the "left-behind" (留守) children whose parents are working in cities before Children's Day.

       During a visit to northwest China's Shanxi Province, Wen visited the home of Yang Saike, a primary

school boy in a village of Xingping City.

       Yang, whose parents were working in Fujian, thousands of kilometers away, was cared for by his

grandparents. His parents fail to go home even once a year.

       The premier held Yang in his arms and looked through his exercise book and praised him for his hard work.

       Wen talked with many children and asked them many questions about their schooling and life.

       "You are so pretty," Wen said to Liu Mengqi, a seven-year-old girl living with her grandmother.

Liu's parents were also working in the city.

       "Have you been to school yet?" Wen asked two other girls.

       "We are going to the pre-school class," said one.

       "Mom and dad at home?" Wen asked. The children shook their heads.

       "Children cannot see their parents very often, which is a new problem in the countryside. We should

give them more care and love," said the premier.

       With fast economic (经济) development, more people in the country chose to work in cities and left

their children with grandparents or relatives back home, said Wen.

       The premier asked local governments to do something to protect and care for such children at home

and freeing (解除)their parents in cities from worries about their children.

1. Wen says a new problem in the country is that "left-behind" children __________.

A. seldom get care from the government    

B. seldom get together with their parents

C. cannot do well in school like others    

D. cannot get any love from their parents

2. According to (根据) Wen, more country people go to work in cities because of _____  

A. great losses of farmland                  

B. their hope for city life

C. economic development                  

D. their poor country life

题型:单项选择题

( )是组织中最活跃的因素,也是最具有不确定性的因素。

A.人

B.资源

C.职能

D.信息

题型:单项选择题

B类防火涂料具有一定的装饰效果,涂层厚度一般为( )。

A.8~50mm

B.2~7mm

C.4~10mm

D.10~40mm

题型:单项选择题

Rivalta试验主要用于下列何种体液的检验()

A.精液

B.羊水

C.脑脊液

D.尿液

E.浆膜腔积液

题型:单项选择题

托运人应当根据货物()及()、运输环境条件和承运人的要求,采用适当的内、外包装材料和包装形式,妥善包装。

A、性质

B、重量

C、体积

D、材料

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