问题 单项选择题 B型题

糖尿病酮症酸中毒时患者()

A.胰岛素绝对不足

B.大量甲状腺素突然入血

C.呼气带烂苹果味

D.甲状腺肿大,震颤,有杂音

E.饥饿感,心慌手颤

答案

参考答案:C

解析:甲状腺危象系甲状腺功能亢进症病情恶化时的严重症候群,可危及生命,常因各种诱因所致的大量甲状腺素突然释放入血导致。1型糖尿病发病系因胰岛B细胞破坏、胰岛素分泌绝对不足所致。糖尿病代谢紊乱加重时,脂肪动员和分解加速,大量脂肪在肝经β氧化产生大量酮体(包括乙酰乙酸、β-羟丁酸、丙酮),引起血酮体水平升高及尿酮体出现;代谢紊乱进一步恶化,酸性的酮体堆积,超过体内酸碱平衡的调节能力,则血pH下降,随后出现恶心、呕吐、呼吸深快、头痛、烦躁,形成酮症酸中毒。呼气中出现烂苹果味系丙酮所致。

单项选择题
阅读理解

阅读理解。

     Last month, students from one hundred and three universities in eightyeight countries took part in

an international computer programming contest. The Battle of the Brains took place in Harbin, China. 

 __1__

     Jerry Cain, coach of Stanford University Team  California, says, "One of the programming problems

was trying to figure out how to break an arbitrary chocolate bar into a certain number of pieces of a

certain numb er of sizes and to do it as quickly as possible.    __2__"

     The students first listed the problems in order of difficulty.__3__ They designed ways to test their

solutions. And they wrote needed software systems.  Even the winning team from Shanghai Jiaotong

University in China was not able to solve all the problems within the given time limit.  Stanford's team

solved five problems and finished in the 14th place. Stanford was one of twentyone American universities

that took part in the contest this year.

     __4__ It began in 1970 at Texas A&M University. The contest quickly became popular in the

United States and Canada. It developed and grew as more and more schools took part in local and

area contests.

     The first final competition was held in 1977 at the Association for Computing Machinery Computer

Science conference. Today, a network of universities holds area competitions that send the winners to

the world finals, now organized by IBM. Contest spokesman Doug Heintzman says the world champions

receive prizes and scholarships.  __5__

A. The competitors show real interest in IBM.

B. Then they figured out the requirements of each.

C. And that's probably the simplest of all of them.

D. This competition is an opportunity to be recognized by famous universities from the world.

E. Threeperson teams from each school had five hours to solve eleven real world problems.

F. The official name of the Battle of the Brains is the ACM  International Collegiate Programming Contest.

G. They are also guaranteed an offer of employment with IBM.