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【单选题】
能够稳定输出电压的是A.
电流正反馈
B.
电压正反馈
C.
电流负反馈
D.
电压负反馈
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反馈参考答案：
举一反三
【单选题】听力原文：W: Kevin, You are having another cup of coffee? That's your third since lunch. M: (20)Yeah. Well, I stayed up all night reviewing for my history exam. I couldn't keep my eyes open in my last clas...
A.
The effects of caffeine.
B.
Some causes of headaches.
C.
How to do well on exams.
D.
Problems with the student cafeteria.
【单选题】根据以下材料，回答题 Volunteering is often so meaningful to people who try it that they are inspired to share their experiences with others. Read the personal 16 below to see how people who volunteer， are peopl...
A.
feelings
B.
tales
C.
reflections
D.
actions
【简答题】阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳选项，并涂在答题卡上。 My mother used to ask me what was the most important part of the body. Through the years I would 21 what I thought was the correct answer. When I was younger...
【简答题】. 完形填空（共20小题；每小题1.5分，满分30分） 阅读下面短文，从短文后所给题目的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 Mother used to ask me what the most important part of the body is. Through the years I would 21 at the cor...
【单选题】患者,男性,32岁。两日前因淋雨后出现畏寒、发热、咳嗽等表现,测体温39.2°C,今晨起咯铁锈色痰,伴右侧胸痛和呼吸困难。 据此简要病史,最恰当的主诉是
A.
发热、咳嗽3日，伴咯铁锈色痰、右侧胸痛、呼吸困难1日
B.
受凉后畏寒、发热、咳嗽3日，咯铁锈色痰，右侧胸痛1日
C.
畏寒、发热、咳嗽、咯痰伴右侧胸痛和呼吸困难
D.
3 日前雨淋后发热、咳嗽，今起咯铁锈色 淋雨受凉后 痰伴右侧胸痛和呼吸困难
E.
淋雨受凉后畏寒、发热、咳嗽3日，咯痰、胸痛伴呼吸困难1日
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