DI Web sites使用注意点有A．信息量大，但有时杂乱无章和重，_爱下问搜题

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问题多项选择题

DI Web sites使用注意点有

A．信息量大，但有时杂乱无章和重，尤其公共网站；网站书目增加快，消亡也快

B．注意经常阅读要闻栏目，淘汰质量和信誉较差的网站；"检索功能(search)"使用频率高，但各冈检出率差别大

C．可利用"搜索引擎"功能寻找新的目标；充分利用"友情联接功能(link)"扩大检索面,但所联接站间速度差异大

D．逐步发现自己用的核心网站(keywebsite),按需选网；网站信息的综合性强,新闻类、法规类信息是传统科技文献难以解决的,但要注意新闻类、广告类和科技类信息的区别

E．患者用网站资料需要专业人员指导；网络技术只是DI工作的手段之一,DI中的科学内容还要依靠真正的科学发现；检索文献已不困难,资料分析和综合利用是关键

答案

参考答案：A,B,C,D,E

完形填空

Mark was walking home from school one day when he saw a boy in front of him. He had dropped all of the books he was   16 , along with two sweaters, a basketball and a walkman (随身听).
Mark stopped and helped the boy pick the things up.   17  they were going the same way, he helped to carry some of his things. As they walked, Mark   18  that the boy’s name was Bill. He loved computer games, basketball, music and history,   19  he was having trouble with some of his   20  in school.
They arrived at Bill’s home first and Mark was   21  in for a Coke and to watch some television. The afternoon passed   22  with a few laughs and some small talk, then Mark went home.
They continued to   23  each other at school, had lunch together once or twice a week, and then they   24  finished middle school. Three weeks before they left school, Bill asked Mark if they could talk.
Bill reminded Mark of the day years ago when they had first   25 . “Did you ever wonder   26  I was carrying so many things home that day?” asked Bill.
“You see, I cleaned out my locker (锁柜) because I didn’t want to leave   27  for anyone else. I was going home to kill myself. But after we   28  some time together talking and laughing, I   29  that if I killed myself, I would have missed many good times. So you see, Mark, when you   30  those books that day, you actually saved my life.”

多项选择题

青壮年腹痛多见（）

A.蛔虫病

B.胰腺炎

C.消化性溃疡

D.先天畸形

E.急性阑尾炎