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【单选题】
A 23-year-old woman arrives at the emergency room complaining that, out of the blue, she had been seized by an overwhelming fear, associ- ated with shortness of breath and a pounding heart. These symptoms lasted for approximately 20 minutes, and while she was experiencing them, she feared that she was dying or going crazy. The patient has had four similar episodes during the past month, and she has been worrying that they will continue to recur. Which of the following is the most likely diagnosis?A.
Acute psychotic episode
B.
Hypochondriasis
C.
Panic disorder
D.
Generalized anxiety disorder
E.
Posttraumatic stress disorder
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【简答题】A．He likes kids and has worked in a children's camp. B．He is lazy and immature but good in a cr. C．He quarrels with everyone he works with. D．He is immature and loves playing tricks on people.
【简答题】按照光纤中传输模式的多少,可以将光纤分为 和 两类。
【简答题】从传输模式上分类可把光纤分为 光纤和 光纤两类。
【单选题】Yesterday Frank worked deep into the night, this is the second time this week he's stayed up, ____ ? [ ]
A.
didn't he
B.
isn't it
C.
isn't this
D.
hasn't he
【简答题】光纤分为()光纤和()光纤两类。
【简答题】光纤分为 和 两种类型 。
【简答题】光纤分为()光纤和多模光纤两类。
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