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问题 单项选择题

下列哪项最不可能引起溃疡性结肠炎（）

A.结肠的感染

B.变态反应

C.细胞免疫异常

D.遗传

E.过敏反应

答案

参考答案：A

解析：溃疡性结肠炎的病因尚未完全明确，目前一般认为其发病主要是由于免疫机制异常，并与遗传因素有关，而感染在本病发病中的地位尚难肯定，所以结肠感染最不可能引起溃疡性结肠炎。可能存在对正常菌丛的免疫耐受缺失。

单项选择题

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.

A variety of explanations have been (4) by psychologists for this "childhood amnesia". One argues that the hippo-campus, the region of the brain which is (5) for forming memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) It’s like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone else’s spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long term memories. In other (16) , children have to talk about their experiences and hear others talk about (17) — Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Ocean Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experiences.

12（）

A.emphasis

B.assertion

C.explanation

D.assumption
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多项选择题

流通业包括( )

A．交通运输业

B．旅游业

C．仓储业

D．商业

E．信息服务业
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