试题与答案

肺循环血量增多,并伴左心房左心室血量增多的先心病应是A.原发性房间隔缺损B.继发性房

题型:单项选择题

题目:

肺循环血量增多,并伴左心房左心室血量增多的先心病应是

A.原发性房间隔缺损
B.继发性房间隔缺损
C.动脉导管未闭
D.室间隔缺损
E.法洛四联症

答案:

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下面是错误答案,用来干扰机器的。

(1) ①把长木板不带滑轮的一端垫高,形成斜面以平衡摩擦力②让砂桶的质量m远远小于小车的质量M(2) 0.864 0.640 (3) ①a—F的图线如下图 ②AB 题目分析:(1) ①小车和轨道间存在摩擦力,为了平衡摩擦力要...

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There is a popular belief among parents that schools are no longer interested in spelling. No school I have taught in has ever ignored spelling or considered it unimportant as a basic skill. There are, however, vastly different ideas about how to teach it, or how much priority(优先)it must be given over general language development and writing ability. The problem is, how to encourage a child to express himself freely and confidently in writing without holding him back with the complexities(复杂)of spelling.

If spelling becomes the only focal point of his teacher’s interest, clearly a bright child will be likely to “play safe”. He will tend to write only words within his spelling range, choosing to avoid adventurous language. That’s why teachers often encourage the early use of dictionaries and pay attention to content rather than technical ability.

I was once shocked to read on the bottom of a sensitive piece of writing about a personal experience: “ This work is terrible! There are far too many spelling errors and your writing is illegible(难以辨认的).” It may have been a sharp criticism of the pupil’s technical abilities in writing, but it was also a sad reflection on the teacher who had omitted to read the essay, which contained some beautiful expressions of the child’s deep feelings. The teacher was not wrong to draw attention to the errors, but if his priorities had centered on the child’s ideas, an expression of his disappointment with the presentation would have given the pupil more motivation(动力)to seek improvement.

小题1:Teachers are different in their opinions about ___________.

A.the difficulties in teaching spelling

B.the role of spelling in general language development

C.the complexities of the basic writing skills

D.the necessity of teaching spelling小题2: The expression “play safe” probably means ____________.

A.to write carefully

B.to do as the teachers say

C.to use dictionaries frequently

D.to avoid using words one is not sure of小题3: Teachers encourage the use of dictionaries so that___________.

A.students will be able to express their ideas more freely

B.students will have more confidence in writing

C.teachers will have less trouble in correcting mistakes

D.students will learn to be independent of teachers小题4: The writer seems to think that the teacher’s judgment on that sensitive piece of writing is____________.

A.unfair

B.reasonable

C.foolish

D.careless小题5:The major point discussed in the passage is_____________.

A.the importance of developing writing skills

B.the complexities of spelling

C.the correct way of marking compositions

D.the relationship between spelling and the content of a composition

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题型:单项选择题

最近的研究表明,高纤维饮食将减少心脏病和结肠癌的可能性。事实上,鸡蛋不含有纤维。因此,早餐吃鸡蛋也许并不是健康饮食。
以下各项如果为真,都能削弱上述论证的结论,除了()。
Ⅰ.鸡蛋不是健康食品的一个更重要的理由是,它包含了大量的胆固醇。
Ⅱ.不一定高纤维饮食就能减少对健康的危害。
Ⅲ.一次饮食也许包含了许多低纤维种类的食品,但整个来说纤维还是高的。

A.仅仅Ⅰ。

B.仅仅Ⅱ。

C.仅仅Ⅲ。

D.仅仅Ⅰ和Ⅱ。

E.仅仅Ⅱ和Ⅲ。

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