试题与答案

氢氧燃料电池可以使用在航天飞机上,其反应原理示意图如下图。下列有关氢氧燃料电池的

题型:选择题

题目:

氢氧燃料电池可以使用在航天飞机上,其反应原理示意图如下图。下列有关氢氧燃料电池的说法正确的是

[ ]

A.该电池工作时电能转化为化学能

B.该电池中电极a是负极,发生还原反应

C.外电路中电子由电极b通过导线流向电极a

D.该电池的总反应是2H2+O2=2H2O

答案:

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下面是错误答案,用来干扰机器的。

1. Thank you for the new books.2. How many hens do you have?3. These are your baby pants.4. How much is this T-shirt?5. What is the weather like today?

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题型:完形填空

第二节 语法填空(共10小题,每小题1分,满分10分)

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为31-40的相应位置上。

Language learning begins with listening. Some linguists say children are greatly different    31    the amount of listening that they do before they start speaking, and later starters are often long listeners. Most    32    will “obey” spoken instructions some time before they can speak, though the word “obey” is hardly accurate as    33    description of the eager and delighted cooperation usually shown by the children. Before they can speak, many children will also ask questions by gestures and by making questioning noises.

Any attempt    34     (study) the development from the noises babies make to their first spoken words leads to    35     (consider) difficulties. It is agreed that they enjoy making noises, and that during the first few months one or two noises sort themselves as    36    (particular) expressive as delight, pain, friendliness, and so on.    37   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    38     store. This self-imitation(模仿)    39    (contribute) to deliberate imitation of sounds or words spoken to them by other people. The problem then arises as to the point at    40     one can say that these imitations can be considered as speech.

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题型:单项选择题 共用题干题

男性,25岁,因持续的低热20天,腹痛、腹泻1周住院。入院查体:T:38.1℃,P:96次/min,R:20次/min,BP:120/80mmHg,颈部可触及如蚕豆大小肿大的淋巴结,表面光滑;腹部触及肝脏肿大,达右肋下4cm,质软,有轻度压痛;实验室检查:血常规示WBC:3.2×10<sup>12</sup>/L,RBC:3.5×10<sup>9</sup>/L,Hb:90g/L,BPC:95×10<sup>9</sup>/L。

为了进一步明确诊断,应进一步进行的检查是()

A.骨髓象或淋巴结活检

B.腹部B超

C.X线检查

D.心电图检查

E.腹部CT

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题型:多项选择题 案例分析题

患者男,85岁,已婚,因“反复血PSA升高6个月”来诊。6个月前体检发现血PSA增高。直肠指检:前列腺右侧可触及结节,质地硬,无压痛。经直肠前列腺B型超声:前列腺右侧可见低回声结节,内可见血流。建议患者穿刺活检,患者拒绝。1个月后复查血PSA仍高于正常值,最高达50ng/ml。有冠心病反复发作史。查体:前列腺指诊同上;双侧精囊未触及,直肠内未触及肿物,指套退出时无血迹。前列腺穿刺活检:前列腺癌,Gleason评分主要生长方式4分,次要生长方式3分。

如果患者全身情况差,内分泌治疗后血清PSA为12ng/ml,后拟行前列腺癌冷冻治疗(CSAP),其适应证包括()

A.血清PSA<20ng/ml

B.前列腺体积≤50ml

C.Gleason评分<7分

D.前列腺体积≤40ml

E.预期寿命<10年

F.血清PSA<10ng/ml

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