营养不良最常见合并的维生素缺乏症是() A.维生素D B.维生素A C.维生素C D

题型:单项选择题

问题:

营养不良最常见合并的维生素缺乏症是()

A.维生素D

B.维生素A

C.维生素C

D.维生素B

E.维生素K

考点:上海住院医师儿科儿童保健儿童保健题库
题型:单项选择题

已知集合A={1,2,3,.....,99,100}

(1)A中任取三个元素的子集有____个

(2)从A中任取三个元素相加,和为奇数的有_____种

(3)从A中任取两个元素相加,和是3的倍数有______种

(4)从A中任取两个元素相加,和大于100的有_____种

题型:单项选择题
根据短文内容,从下框的A-F选项中选出能概括出每段主题的最佳选项。选项中有一项是多余项。

A.    Think while you are reading                B. Select a proper material
C.     Five suggestions for achieving better results   D. Read loudly and passionately
E.     Read on and keep reading as a habit         F. Use a dictionary at a right time

 
 

 

 

 
小题1:

Don’t choose a rather difficult book or a too easy one for yourself to read. A book full of new words will make you feel discouraged quickly. To understand those new words, you have to turn to the dictionary quite often. It seems that you are not reading the book but the dictionary. It has no fun at all! On the contrary, a too easy will only waste your time and cannot do any help. The two extremes may at last make you give up reading. So it’s better for you to find a proper book with no more than five new words on each page.

 

 
小题2:

  If you come across a new word, do not look it up in a dictionary as quickly as possible. Leave it alone and guess the meaning of it based on the content of the text. This ability is quite necessary in reading. If you know your guess is right later, you will be highly excited at your “success”, and your interest in reading is well stimulated. If a word really prevents you from understanding the whole passage, turn to the dictionary by then. I am sure you can remember this word very well, as it has left you such a deep impression for its “troublesome image”.

 

 
小题3:   

  To comprehend what you are reading, you should think while you are reading, then form your own ideas on some special issues. Try to scribble some lines—a very short journal, to express your ideas. Your writing does not need to be quite formal but very expressive. This practice can make you communicate with the original English authors. Day by day, your way of thinking in English will turn into a native way, which is quite important for English writing.

 

 
小题4:

   Language has its own beauty, no matter Chinese or English. Don’t merely take English as a “test”. Take it as an “entertainment” instead and you will enjoy it through learning. Maybe you should find some beautiful literary works such as a prose or a poem to read, if you like. Try to read them as loudly and passionately as you can. During this process, not only can you enjoy yourself by the great emotions of the writers, but also your pronunciation and your manner of speaking English will be improved.

 

 
小题5:

  The last but not the least, keep on reading. If you cannot keep it as a habit, you will suffer from paying without gaining.
题型:单项选择题

女,14岁,渐进性鼻塞2年余,右眼肿痛数月,CT如图所示,应诊断为()

A.筛骨骨肉瘤

B.筛骨骨纤维瘤

C.筛骨软骨瘤

D.筛骨结核

E.筛骨骨化性纤维瘤

题型:单项选择题

材料相同的悬臂梁Ⅰ、Ⅱ,所受载荷及截面尺寸如图5-8-9所示。关于它们的最大挠度有下列结论:()

A.Ⅰ梁最大挠度是Ⅱ梁的1/4倍

B.Ⅰ梁最大挠度是Ⅱ梁的1/2倍

C.Ⅰ梁最大挠度是Ⅱ梁的2倍

D.Ⅰ、Ⅱ梁的最大挠度相等

题型:单项选择题

坡度为2﹪,说明水平距离每延长100m,升高()

A.2mm

B.2cm

C.2dm

D.2m

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