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【多选题】
股骨粗骨折整复后持续牵引,固定期间应注意( )
A.
不负重
B.
不盘腿
C.
不侧卧
D.
患肢肌肉锻炼
E.
全身锻炼
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参考答案:
举一反三
【单选题】求双曲线 的顶点坐标
A.
(-4,0),(4,0)
B.
(-5,0),(5,0)
C.
(-16,0),(16,0)
D.
(-25,0),(25,0)
【单选题】Which one of these is not newspaper?
A.
The New York Times
B.
The Washington Post
C.
The Sun
D.
The Declaration of Independence
【单选题】患儿男,3岁6个月,因咳嗽4天加重伴发热急诊入院。4天前受凉后出现咳嗽,初为单声咳嗽,伴痰响,无犬吠样咳嗽及鸡鸣样回声,3天前在当地医院诊断"肺炎",给予"青霉素+头孢类抗生素"治疗,具体疗程与剂量不详。1天前出现发热,为中低热,最高达39.0℃,用药后可降至正常,约1~2小时后发热复现,为持续中低热,且咳嗽加重,阵发性发作,3~8声/阵,发热有好转,遂转来我院治疗。体检:T39.3℃,P144次...
A.
抗感染
B.
西地兰
C.
胸腔闭式引流
D.
气管插管
E.
呼吸机辅助呼吸
F.
支气管镜
【单选题】《作战篇》当中一辆革车配有士兵多少人
A.
25
B.
75
C.
100
D.
10万
【多选题】Which one of these are Scottish inventions?
A.
universal standard time
B.
RADAR
C.
ATM
D.
PIN
E.
the theory of electromagnetism
F.
Higgsboson
G.
Penicillin
【单选题】Which one of these statements is correct?
A.
Individuals tend to prefer later cash flows over current cash flows.
B.
The value of an investment depends on the size, timing, and risk of the investment's cash flows.
C.
When selecting one of two projects, managers should select the project with the higher total expected cash flow.
D.
Most investors prefer greater risk over less risk.
【单选题】which one of these sentences is ture
A.
the writer doesn't like garden
B.
the writer likes gardens, but he is lazy
C.
the writer never enters for the competition
D.
the writer never wins a prize
【简答题】已知双曲线 中心在原点,焦点坐标是 ,并且双曲线的离心率为 。 (1)求双曲线 的方程; (2)椭圆 以双曲线 的焦点为顶点,顶点为焦点,求椭圆 的方程。
【单选题】求双曲线 的顶点坐标
A.
(-16,0) ,(16,0)
B.
(-4,0),(4,0)
C.
(-9,0),(9,0)
D.
(-3,0),(3,0)
【简答题】设双曲线的顶点为 ,该双曲线又与直线 交于 两点,且 ( 为坐标原点)。 (1)求此双曲线的方程; (2)求
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