45岁男性,经理,送来急诊,自述半小时前突然感到气紧,胸闷,心悸,头晕,出汗,认为生

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问题:

45岁男性,经理,送来急诊,自述半小时前突然感到气紧,胸闷,心悸,头晕,出汗,认为生命垂危,要求紧急处理。近一月来,这种情况发生过3次,每次持续0.5~1小时,发病间隙期一切正常,发病与饮食无明显关系。

最有助于鉴别诊断的项目是

A.追问起病诱因

B.心电图

C.脑电图

D.血钾测定

E.脑CT

考点:临床执业医师临床执业医师
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9.3÷0.5□9.3×2。□内应填[ ]

A.>    

B.<

C.=

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用万能工具显微镜影像法测量螺纹牙型半角,是将中央目镜视场内米字线的十字中心虚线沿螺纹牙型影像的中心调整。

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儿童期膳食中饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸的适宜比例是()。

A.>1∶1∶1

B.<1∶1∶1

C.1∶1∶1

D.<1∶1∶1.5

E.>1∶1∶1.5

题型:单项选择题

Sports Commentary  One of the most interesting and distinctive of all uses of language is commentary. An oral reporting of ongoing activity, commentary is used in such public arenas as political ceremonies, parades, funerals, fashion shows and cooking demonstrations. The most frequently occurring type of commentary may be that connected with sports and games. In sports there are two kinds of commentary, and both are often used for the same sporting event. “play-by-play” commentary narrates the sports event, while “color –adding” or “color” commentary provides the audience with pre-event background, during-event interpretation, and post-event evaluation. Color commentary is usually conversational in style and can be a dialogue with two or more commentators.  Play-by-play commentary is of interest to linguists because it is unlike other kinds of narrative, which are typically reported in past tense. Play-by-play commentary is reported in present tense. Some examples are “he takes the lead by four” and “she’s in position.” One linguist characterizes radio play-by-play commentary as “a monologue directed at an unknown, unseen mass audience who voluntarily choose to listen…and provide no feedback to the speaker.” It is these characteristics that make this kind of commentary unlike any other type of speech situation.  The chief feature of play-by-play commentary is a highly formulaic style of presentation. There is distinctive grammar not only in the use of the present tense but also in the omission of certain elements of sentence structure. For example “Smith in close” eliminates the verb, as some newspaper headlines do. Another example is inverted word order, as in “over at third is Johnson.” Play-by-play commentary is very fluent, keeping up with the pace of the action. The rate is steady and there is little silence. The structure of the commentary is cyclical, reflecting the way most games consist of recurring sequences of short activities---as in tennis and baseball---or a limited number of activity options---as in the various kinds of football. In racing, the structure is even simpler, with the commentator informing the listener of the varying order of the competitors in a “state of play” summary, which is crucial for listeners or viewers who have just tuned in.

Which of the following statements is true of color commentary

A.It narrates the action of the event in real time, using the present tense.

B.It is a monologue given to an audience that does not respond to the speaker.

C.It is steady and fluent because it must keep up with the action of the event.

D.It gives background on the event, and interprets and evaluates the event.

题型:单项选择题

贫血患者,化验为小细胞正色素性贫血,伴有慢性下肢溃疡,血清铁700μg/L,总铁合力1900μg/L,骨髓外铁(++)。诊断应为()

A.营养性巨幼细胞贫血

B.缺铁性贫血

C.失血性贫血

D.铁粒幼细胞性贫血

E.慢性感染性贫血

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