一名远视患者,远视力为0.1,先作主观验光,用+2.5DS的镜片后,远视力提高到1.

题型:单项选择题 案例分析题

问题:

一名远视患者,远视力为0.1,先作主观验光,用+2.5DS的镜片后,远视力提高到1.5,再慢慢增加镜片的度数至+5.5DS时远视力仍然保持1.5,再增加镜片的度数远视力下降,用阿托品麻痹使睫状肌调节放松后检影结果为+6.5DS

该患者的绝对远视度数为()

A.+2.5D

B.+3.0D

C.+5.5D

D.+1.0D

E.+6.5D

考点:江苏住院医师眼科眼视光学眼视光学题库
题型:单项选择题 案例分析题
读算法,完成该题:第一步,李同学拿出一正方体;第二步,把正方体表面全涂上红色;第三步,将该正方体切割成27个全等的小正方体;第四步,将这些小正方体放到一箱子里,搅拌均匀;第五步,从箱子里随机取一个小正方体.问:取到的小正方体恰有三个面为红色的概率是(  )
A.
6
27
B.
8
27
C.
12
27
D.
24
27
题型:单项选择题 案例分析题

A good modern newspaper is an extraordinary piece of reading. It is remarkable first for what it contains the range of news from local crime to international politics, from sports to business to fashion to science, and the range of comment and special features (特定) as well, from editorial page to feature articles and interviews to criticism of books, art, theatre and music. A newspaper is even more remarkable for the way one reads it never completely, never straight through, but always by jumping from here to there, in and out glancing at one piece, reading another article all the way through, reading just a few paragraphs of the next.
A good modern newspaper offers a variety to attract many different readers, but far more than any one reader is interested in. What brings this variety together in one place is its topicality (时事性), its immediate relation to what is happening in your world and your locality now. But immediacy and the speed of production that goes with it mean also that much of what appears in a newspaper has no more than transient (短暂的) value.
For all these reasons, no two people really read the same paper: what each person does is to put together out of the pages of that day’s paper, his own selection and sequence, his own news paper. For all these reasons, reading newspapers efficiently, which means getting what you want from them without missing things you need but without wasting time, demands skill and self-awareness as you modify and apply the techniques of reading.

According to the passage, the reason why no two people really read the same newspaper is that ______.

A. people scan for the news they are interested in
B. different people prefer different newspapers
C. people are rarely interested in the same kind of news
D. people have different views about what a good newspaper is

题型:单项选择题 案例分析题

我国第一代“人造太阳”核实验装置已于2006年9月28日放电成功,它产生能量的方式和太阳相同,在超高温条件下氢的原子核发生了_____________ (填“聚变”或 “裂变”),产生巨大能量。

题型:单项选择题 案例分析题

如图所示电路,把两个金属夹子夹在哪些学习用具的两端,闭合开关后小灯泡能发光(  )

A.塑料尺

B.不锈钢尺

C.橡皮擦

D.铅笔外壳

题型:单项选择题 案例分析题

同一张图上,尺寸线终端形式可以有2种()

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