将x2+4x+5配方成(x+m)2+n的形式为______.

题型:填空题

问题:

将x2+4x+5配方成(x+m)2+n的形式为______.

考点:一元二次方程的应用
题型:填空题

短文改错。

    Many students are now facing with problems like deciding whether to focus on science or art.

Not taking the children's interest or preferences in account, some parents force their children to

make the choice as their will, that troubles many students.

     Throughout our lives we have to make much choices. As students, we should talk to our parents

or teachers especial on life-changing decisions. But when it came down to it, we're the ones who

must live with their choices. On the other hand, parents should try to help their children make the

best possible decisions, instead forcing them to do something that against their will.

     It depends on students themselves whether they'll be science students and arts students. Just let

their hearts show them the way.

________________________________________________________________________________

题型:填空题

下列叙述中,不正确的是( )。

A.Access具备了模块化程序设计能力

B.Access不具备程序设计能力

C.Access可以使用系统菜单创建数据库应用系统

D.Access具有面向对象的程序设计能力,并能创建复杂的数据库应用系统

题型:填空题

在会员制期货交易所中,会员的基本权利包括()。

A.参加会员大会,行使表决权、申诉权

B.在期货交易所内进行期货交易

C.按规定转让会员资格

D.主持会员大会

题型:填空题

鼠疫耶尔森菌的理化特征包括()

A.鼠疫耶尔森菌为两端钝圆,两极浓染的椭圆形小杆菌

B.革兰染色阴性

C.无鞭毛,有芽胞,能活动

D.对外界抵抗力较弱,对干燥、热和一般消毒剂均甚敏感

E.在蚤粪中存活1个月,在尸体中可活数周至数月

题型:填空题

减速器工作油缸的额定工作压力为()kPa;在空载状态下,最低启动压力应小于()kPa。

A.600;400

B.700;300

C.800;500

D.900;500

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