问题 单项选择题

患者女性,16岁。因摔伤后髋部肿痛血肿来就诊,患者哥哥也有类似出血病史。BT正常,APTT 80s,PT(一期法)13s。STGT及纠正试验结果:患者硫酸钡吸附血浆加正常人血清,能纠正;正常人硫酸钡吸附血浆加患者血清,能纠正。最可能的诊断是

A.先天性凝血酶原缺乏症

B.先天性纤维蛋白原缺乏症

C.血友病甲

D.血友病乙

E.先天性因子Ⅺ缺乏症

答案

参考答案:E

解析: BT正常表明血管与血小板正常,PT正常,APTT延长,说明可能是内源性凝血途径缺陷,即有可能是因子Ⅷ、Ⅸ、Ⅺ、Ⅻ缺乏。正常人硫酸钡吸附血浆中含Ⅷ、Ⅺ、Ⅻ,正常人血清中含有Ⅸ、Ⅺ、Ⅻ。由此题可知,只有因子Ⅺ缺乏,才不会影响硫酸钡吸附血浆加血清的STGT检测结果。

问答题
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Almost two-thirds of children want their parents to spend more time reading to them before bed, and most prefer Mum’s storytelling to Dad’s, researchers said.

They carried out a study that showed younger children aged 3-4 were most hungry for more stories, with over three-quarters saying they wished their parents read to them more often.

More than half of all children aged 3-8 said story time was their favourite pastime with their parents.

"The results of our research confirm the traditional activity of storytelling continues to be a powerful learning and emotional resource in children's lives," said child psychologist Richard Woolfson.

Storytelling ranked higher than television or video games among pastimes for kids, and 82 percent said reading a story with their parents helped them sleep better, according the survey of 500 children aged 3-8 in Britain.

The best storytellers were mothers who used funny voices to illustrate different characters or made their own special sound effects to keep the story moving, researchers said.

When mum and dad are not at hand, celebrities(名人) will do: over 30 percent of children said they would like to hear a bedtime story from Harry Potter star Daniel Radcliffe, with teen idols(偶像) Zac Efron, Miley Cyrus and Emma Watson.

"It can be very difficult for parents to find the time to read with their children, but these moments can help build strong relations and play a vital part in their child's development," said Woolfson.

小题1:The underlined word “pastime” in the passage most probably means          .

A.old time

B.entertainment

C.emotion

D.character小题2:The author develops the passage mainly by        .

A.pointing out similarities and differences

B.following the natural time order

C.comparing opinions from different fields

D.providing examples and statistics小题3:Reading a story with their parents helped most kids aged 3-8         .

A.grow stronger

B.become more emotional

C.sleep better

D.become more powerful