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问题 单项选择题 A1/A2型题

下列哪项关于枕骨大孔疝的叙述不正确（）。

A.剧烈头痛、呕吐

B.颈项强直、强迫头位

C.生命体征紊乱出现较早

D.早期出现意识障碍

E.早期可突发呼吸骤停

答案

参考答案：D

解析：枕骨大孔疝主要表现为：①剧烈头痛、频繁呕吐等颅内压增高的症状加重；②颈项强直，强迫头位；③生命体征紊乱出现较早，而意识障碍出现较晚；④瞳孔可忽大忽小；⑤早期可在无昏迷的情况下突然呼吸停止而死亡。

单项选择题

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never ending flood of words. In (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.
To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172words a minute (19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

A．what
B．which
C．that
D．if
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单项选择题

《义务教育法》规定：父母或其他监护人（）送子女和被监护人按时入学，按规定年限接受义务教育。

A．应该

B．必须

C．可以
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