白兔只数是黑兔只数的25,( )是单位“1”的量. A.白兔只数 B.黑兔只数 C.总

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问题:

白兔只数是黑兔只数的
2
5
,(  )是单位“1”的量.
考点:分数的认识及意义
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借款人还清贷款本息后,一些档案材料需要退还借款人或销毁。()

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心房颤动的临床特点包括()。

A.心律绝对不规则

B.心音强弱不等

C.脉搏短绌

D.仅见于器质性心脏病

E.心排血量下降25%

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Language learning begins with listening. Children are greatly different in the amount of listening they do before they start speaking, and later starters are often long listeners. Most children will “obey” spoken instructions some time before they can speak, though the word “obey” is hardly accurate as a description of the eager and delighted cooperation usually shown by the child. Before they can speak, many children will also ask questions by gesture and by making questioning noises. Any attempt to study the development from the noises babies make to their first spoken words leads to considerable difficulties. It is agreed that they enjoy making noises, and that during the first few months one or two noises sort themselves as particularly expressive as delight, pain, friendliness, and so on. But since these can’t be said to show the baby’s intention to communicate, they can hardly be regarded as early forms of language. It is agreed, too, that from about three months they play with sounds for enjoyment, and that by six months they are able to add new words to their store. This self-imitation(模仿)leads on to deliberate(有意的)imitation of sounds made or words spoken to them by other people. The problem then arises as to the point at which one can say that these imitations can be considered as speech. It is a problem we need to get out. The meaning of a word depends on what a particular person means by it in a particular situation and it is clear that what a child means by a word will change as he gains more experience of the world .Thus the use at seven months of “mama” as a greeting for his mother cannot be dismissed as a meaningless sound simply because he also uses it at other times for his father, his dog, or anything else he likes. Playful and meaningless imitation of what other people say continues after the child has begun to speak for himself, I doubt, however whether anything is gained when parents take advantage of this ability in an attempt to teach new sounds.

1.. Before children start speaking,what is greatly different?________.

A. the amount of listening     

B. a number of listening

C. the sound of listening

D. the meaning of listening

2. starters are often long listeners, the sentence means one can ________.

A. be hard to speak fluently

B. begin to speak quickly

C. start with listening

D. often take a long time in learning to listen properly

3. these can not be said to show a baby’s intention to speak, these refer to  ________.

A. pain   

B. happiness

C. kindness

D. above of all

4. according to the writer, we can draw a conclusion that  ________.

A. children are fond of imitating

B. these imitation can be considered as speech

C. children get more experience of the world

D. children’s use  of  words are often meaningless when a child is six months, he

5. When a child is six months, he can  ________.

A. call his mama

B. imitate many languages

C. store new words

D. play with sounds

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用于显微镜观察的试样应()。

A、把带水的试样放在载物台上

B、保证干燥、清洁

C、把带酒精的试样放在载物台上

D、任何状态

题型:选择题

男,46岁,右颈部无痛性淋巴结肿大4个月,伴上腹疼痛,食欲不佳,发热、盗汗、体重减轻。行剖腹探查见胃与胰头及腹膜有粘连,周围有多个肿大的淋巴结,病理检查为非霍奇金淋巴瘤,T细胞来源。临床分期属()。

A.IIB

B.mA

C.mB

D.1VA

E.IVB

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