family 　　

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感知理解如图1∠MAN=90°射线AE在这个角的内部点BC在∠MAN的边AMAN上且AB=ACCF⊥

二次函数fx=ax2+bx+ca≠0满足fx+1-fx=2x且f0=11求fx的解析式2若在区间［-

如图①在矩形ABCD中点E为CD的中点连结AE并延长交BC的延长线于点F过点E作EM⊥AF交BC于点

已知函数fx在-∞+∞上是增函数若ab∈R且a+b＞0则有A．fa+fb＞-fa-fbB．fa+fb

下列因式分解正确的是A．aa²-1=a³-a B．-a²+6a-9=-a-3²C．a²+b²=a+b

给出以下三个数列1051015202444431815.51310.585.5．它们有什么共同的特征

设△ABC的内角ABC所对边的长分别为abc且有2bcosA=acosC+ccosAⅠ求角A的大小Ⅱ

Howdidtheresearcherstesttheirvolunteers?

By giving everyone nasal drops containing either a cold virus or a particular flu virus By giving everyone a medicine that help lessen the probability of catching cold By giving everyone an injection boosting immune function By investigating everyone"s characteristics, interests and hobbies

Howisablendedfamilyformed

A blended family is formed by two single-parent families. A blended family is formed by a nuclear family and a grandparent. A blended family is formed by a nuclear family and grandparents. A blended family is formed by two fatherless families.

Peoplewithapositiveemotionalstylemayhaveallofthefo

happy selfish easy-going energetic

设函数fx的定义域是0+∞且对任意正实数xy都有fxy=fx+fy恒成立已知f2=1且当x＞1时fx

[阅读发现]如图①分别以△ABC中ABAC为边向外作正方形ABDE和正方形ACGF点EAC不在同一条

Accordingtoastudyauthorwhenpeoplewithapositiveemot

that their illness is very serious that their illness is not so serious that they do not get any illness at all that the illness they get is not a mild one

设fx是定义在R上的函数对任意实数mn都有fm·fn=fm+n且当x＜0时fx＞1．Ⅰ证明f0=1Ⅱ

WhichofthefollowingitemsisNOTincludedinthedatathat

Mucus production Aches and pains Sneezing or congestion Blood test

写出下列数列的通项公式1010101213355779932-612-2030-42．4999999

WhichofthefollowingisNOToneofthecharacteristicstha

Hostile Unhappy Warm-blooded Tense

【感知】如图①在正方形ABCD中E是边AB上一点点E不与点AB重合连接DE过点A作AF⊥DE交BC于

如图在△ABC中∠ABC=90°AC=3BC=4点P从点A出发沿折线AC-BC以每秒1个单位长度的速

125×6+125×4的简便算法是A．125×6+4B．125×6×4C．125×6×125×4D．

family

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