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患儿男，5岁，在我院门诊就诊，患者家属诉自幼发现患者行走不稳，未引起注意。查体：双下肢不等长，左下肢较对侧短约1cm。左髋关节主动及被动活动均受限。门诊X线片提示：左侧髋关节脱位。

单纯型先天性髋关节脱位不包括（）

A.髋臼发育不良

B.髋关节半脱位

C.髋关节脱位

D.畸形性髋关节脱位

E.髋关节不稳定

F.髋关节脱位，股骨头位于髂骨翼部分

答案

参考答案：D

单项选择题

Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (51) to how they can be best accommodate such changes. Growing bodies need movement and (52) , but not just in ways that emphasize competition. Because they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (53) that comes from achieving success and knowing that their accomplishments are admired by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (54) to plan activities in which there are more winners than losers, for example, publishing newsletters with many student-written book reviews, (55) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide multiple opportunities for leadership, as well as for practice in successful (56) dynamics. Making friends is extremely important to teenagers, and many shy students need the (57) of some kind of organization with a supportive adult (58) visible in the background.

In these activities, it is important to remember that the young teens have (59) attention spans. A variety of activities should be organized (60) participants can remain active as long as they want and then go on to something else without feeling guilty and without letting the other participants down.

56().

A.groups 

B.individual 

C.personnel 

D.corporation
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多项选择题

下列哪些场所使用的照明电压不应大于36V？（ ）。

A．高温

B．有导电灰尘

C．低温

D．灯具距离地面高度高于2.4m

E．灯具距离地面高度低于2.4m
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