问题 单项选择题 共用题干题

自动化血培养连续监视系统的发展,加快了细菌检验自动化的进程,其工作原理主要为通过各种不同技术来检测细菌生长产生CO2后引起酸碱度、氧化还原电势以及瓶内压力变化来判断待检标本中细菌的存在,不同的血培养系统采用的技术也有所不同。

ESP血培养系统采用的技术是()

A.荧光探测技术

B.特殊的CO2感受器

C.气压传感技术

D.放射性14C标记技术

E.同源荧光技术

答案

参考答案:C

单项选择题 共用题干题
阅读理解

If you had been in my classes in the early McKee days , you would have seen a skinny young man in his late twenties with messy black hair , eyes that looked with a sign of infection , bad teeth and the hangdog look you see on immigrants in Ellis Island photographs or on pickpockets being arrested .

There were reasons for the hangdog look .

I was born in New York and taken to Ireland before I was four . I had three brothers . My father , an alcoholic , wild man , great patriot , always ready to die for Ireland , abandoned us when I was ten . A baby sister died , twin boys died , two boys were born . My mother begged for food , clothing , and coal to boil water for the tea . Neighbors told her to place us in an orphanage , a place for homeless kids . No , no , never . The shame of it . She hung on . We grew . My brothers and I left school at fourteen , worked , dreamed of America and , one by one , sailed away . my mother followed with the youngest , expecting to live happily ever after . That’s what you are supposed to do in America , but she never had a moment of happy-ever-after .

In New York I worked at laboring jobs till I was put into the United States Army . After two years in Germany I went to college on the GI Bill program to become a teacher . In college there were courses on literature and composition . There were courses on how to teach by professors who did not know how to teach . After college I went to McKee , where I put what I had learnt to trial and embarrassed myself when the students considered me a fool .

小题1:. What is a hangdog look ?

A.happy

B.disappointed

C.discouraged

D.angry小题2:. It can be inferred from this passage that __________ .

A.before the author went to Ireland , he lived in New York .

B.the mother is living a joyful life in America with her little son

C.there are four sons in this Irish family living in America

D.the author is now a young teacher in his twenties teaching in a high school小题3:. Which of the following statements is TRUE ?

A.Someone recommended the mother give the children away to kind people .

B.The author’s father sacrificed himself for his beloved homeland .

C.The author got into college because he was hard-working .

D.The author didn’t know much about how to teach when he first started .小题4:. In what way is the passage mainly developed ?

A.Presenting effects and analyzing the causes .

B.Giving typical examples .

C.Describing things in space order .

D.Presenting an idea and arguing in favor of it .