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CV穿刺后突然发绀，脉压低，奇脉、心音遥远
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关于急性左心衰的发病机制 阵发性室上性心动过速
体外转流后穿刺部位肿胀明显
SECTION A In this section you will hear a mini-lecture. You will hear the lecture ONCE ONLY. while listening, take notes on the important points. Your notes will not be marked, but yon will need them to complete a gap-filling task after the mini-lecture. when the lecture is over, yon will be given two minutes to check your notes, and another ten minutes to complete the gap-filling task on ANSWER SHEET ONE. Use the blank sheet for note-taking.ANSWER SHEET ONE Seven Types of Evidence It is important to learn to use evidence in argumentative writing, because without evidence, you can’t persuade anybody of anything. Usually seven types of evidence are used.Ⅰ. Expert Testimony Expert testimony is useful because it comes from somebody with special knowledgeand has been tested by others. There are three kinds of expert testimony:facts, informed opinions, and 1 1. _____The first two can be safely used in your writing, but the third may be dangerous,because they are just what is possibly true.Ⅱ. 2 2. _____This refers to data that can reveal some information. Strong evidence of this type shouldbe valid, accurate, and 3 3. _____Ⅲ. ExampleExamples are widely used in our daily life.Examples can serve three purposes. First, clarify meaning. Second, provide reasonfor justification. Third, 4 4. _____Ⅳ. Personal ExperienceWriter can use his own experience to support an argument. But if the experience is 5 , 5. _____the argument will not be very forceful.Ⅴ. AnalogyAnalogy is a comparison of apparently dissimilar things.Analogy can make unfamiliar topics 6 , but it is not enough to prove anything. 6. _____Ⅵ. Known FactsKnown facts are facts that are known to 7 7. _____They can be used as a type of evidence.Ⅶ. Logic and ReasoningLogic and reasoning may be used in two situations. One, 8 is not available.8. _____Two, the writer wants to strengthen the persuasiveness of his factual evidence.Ⅷ. Three Criteria for Good Evidence:1. relevant2. 9 9. _____3. 10 10. _____
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