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【简答题】
在平面直角坐标系xOy中,已知动点P在正比例函数y=x的图象上,点P的横坐标为m(m>0)。以点P为圆心, 为半径的圆交x轴于A、B两点(点A在点B的左侧),交y轴于C、D两点(D点在点C的上方)。点E为平行四边形DOPE的顶点(如图)。 (1)写出点B、E的坐标(用含m的代数式表示); (2)连接DB、BE,设△BDE的外接圆交y轴Q(点Q异D),连接EQ、BQ。试问线段BQ与线段EQ的长是否相等?为什么? (3)连接BC,求∠DBC-∠DBE的度数。
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举一反三
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在延留和解决之间,可以使用临音装饰旋律
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截面尺寸为450 500,单位是mm
B.
从基础到柱顶纵向钢筋有直径16和18两种规格,采用HRB400钢筋
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【单选题】It is not so easy to diagnose male depression primarily because______.
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相关题目:
【多选题】下列关于“不协和的延留音”的说法,正确的有:
A.
多在下一个强拍或强位解决
B.
在延留和解决之间,可以使用临音装饰旋律
C.
多下行级进解决
D.
延留音为导音时,多上行级进解决
查看完整题目与答案
【单选题】Why are some adults easy to lose their temper according to Dr. Menninger?
A.
They probably grow up in poor families.
B.
They are born to experience failures.
C.
They probably have been spoiled by indulgent parents.
D.
They may have received undue frustrations in childhood.
查看完整题目与答案
【单选题】_____you don’t lose heart, it will be easy for you to overcome the difficulties.
A.
As well as
B.
So long as
C.
So far as
D.
As soon as
查看完整题目与答案
【单选题】框架柱平面布置图中,关于 KZ7,下列说法错误的是( )
A.
截面尺寸为 450 × 500,单位是mm
B.
从基础到柱顶纵向钢筋有直径 16和18两种规格,采用HRB400钢筋
C.
从基础到柱顶箍筋仅有直径 8一种规格,且采用HPB300钢筋
D.
有个别 KZ7的箍筋间距是全高加密为100mm的
查看完整题目与答案
【单选题】Jack is a changeable man , he is easy to lose ___________.
A.
weight
B.
life
C.
temper
D.
way
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【简答题】阅读理解。 With eerily (怪异地) clear and quiet skies across the entire length and breadth of the United Kingdom, the Icelandic volcanic eruption seems to create even more disruption and chaos. The major erup...
查看完整题目与答案
【单选题】框架柱平面布置图中,关于KZ7,下列说法错误的是( )。 (2.5)
A.
截面尺寸为450 500,单位是mm
B.
从基础到柱顶纵向钢筋有直径16和18两种规格,采用HRB400钢筋
C.
从基础到柱顶箍筋仅有直径8一种规格,且采用HPB300钢筋
D.
有个别KZ7的箍筋间距是全高加密为100mm的
查看完整题目与答案
【单选题】It is not so easy to diagnose male depression primarily because______.
A.
few men lose their interest in enjoyable activities
B.
few men are willing to openly express their feelings
C.
men tend to use more lethal methods of committing suicide
D.
there are fewer men who attempt to commit suicide than women
查看完整题目与答案
【单选题】()适用于以件为单位的货品,清点并记录货品件数。
A.
计数法
B.
检尺求积法
C.
计件法
D.
检斤法
查看完整题目与答案
【单选题】下列哪项不是儿童注意缺陷与多动障碍的主要表现
A.
注意缺陷
B.
活动过多
C.
情绪焦虑
D.
学习困难
E.
品行障碍
查看完整题目与答案