将二次函数y=x2+4x-1化为y=(x-h)2+k的形式,结果为y=( )。

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问题:

将二次函数y=x2+4x-1化为y=(x-h)2+k的形式,结果为y=(    )。

考点:二次函数的定义
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下列哪些是腺垂体功能减退症患者的实验室检查结果()

A.雌二醇水平降低

B.24小时尿17羟皮质类固醇及游离皮质醇排量减少

C.血清总T4、游离T4均降低,总T3、游离T3正常

D.FSH、LH、TSH、ACTH、GH、PRL均减少

E.血清总T4、游离T4均升高,总T3、游离T3正常

题型:填空题
如图所示为一磁流体发电机示意图,A、B是平行正对的金属板,等离子体(电离的气体,由自由电子和阳离子构成,整体呈电中性)从左侧进入,在t时间内有n个自由电子落在B板上,则关于R中的电流大小及方向判断正确的是(  )

A.I= ,从上向下

B.I= ,从上向下

C.I= ,从下向上

D.I= ,从下向上

题型:填空题

简述日本20世纪末行政改革的原因和内容。

题型:填空题

Teachers need to be aware of the emotional, intellectual, and physical changes that younga-duhs experience. And they also need to give serious (91) to how they can best (92) such changes. Growing bodies need movement and (93) , but not just in ways that emphasize competition. (94) 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 (95) that comes from achieving success and knowing that their accomplishments are (96) by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (97) to plan activities in which there are more winners than losers, (98) , publishing newsletters with many student-written book reviews, (99) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide (100) opportunities for leadership, as well as for practice in successful (101) dynamics. Making friends is extremely important to teenagers, and many shy students need the (102) of some kind of organization with a supportive adult (103) visible in the background.
In these activities, it is important to remember that young teens have (104) attention spans. A variety of activities should be organized (105) participants can remain active as long as they want and then go on to (106) else without feeling guilty and without letting the other participants (107) This does not mean that adults must accept irresponsibility. (108) , they can help students acquire a sense of commitment by (109) for roles that are within their (110) and their attention spans and by having clearly stated rules.

A.group

B.individual

C.personnel

D.corporation

题型:填空题

抵押权的实现,无须具备的条件:()

A.须抵押权有效存在

B.须债务已届清偿期

C.须债务人未清偿债务

D.抵押物转移占有

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