第10381页 - 飞马题库

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简述题分解因式：9x²+6x+1___

简述题若关于x的方程x²-3x+k=0有两个相等的实数根,则k=_

单选题如图,△ABC中,BD上AB,BD、AC相交于点D,AD=A

A.

B.

C.

D.

单选题如图,正方形ABCD内接于⊙O,线段MN在对角线BD上运动,

A.3

B.4

C.5

D.6

单选题如图,将矩形纸片ABCD沿EF折叠后,点D、C分别落在点D1

A.128°

B.130°

C.132°

D.136°

单选题正五边形的内角和是

A.360°

B.540°

C.720°

D.900°

单选题关于某个函数表达式,甲、乙,丙三位同学都正确地说出了该函数的

A.y=-x

B.

C.y=x²

D.

单选题 Doyouknow____?—_______Yes.Next

A.when will we have the singing competition

B.when we will have the singing competition

C.where will we have the singing competition

D.where we will have the singing competition

单选题下列运算正确的是

A.3a＋2b =5ab

B.5a—2b=3

C.7a+a=7a²

D.(x-1)²=x²＋1-2x

单选题 2021年5月18日上午,江苏省人民政府召开新闻发布会,公布

A.

B.

C.

D.

单选题 Alotoftrees_____inourcityinspr

A.are planted

B.were planted

C.plant

D.planted

单选题 Protectingourselvesisoneof____

A.important

B.more important

C.most important

D.the most important

单选题 Weshouldtaketherestofthefoodho

A.if

B.so

C.unless

D.until

单选题 Listen!Ourscienceteacher_____t

A.explains

B.explained

C.is explaining

D.has explained

单选题 Annhasgotaletterfromherbestfie

A.she

B.her

C.hers

D.herself

单选题 Thevillagersplan_____anewbridg

A.build

B.building

C.to build

D.built

单选题 TheTianwen-1ProbelandedonMars_

A.a

B.in

C.to

D.on

单选题 Therearemany____teachersinthis

A.woman

B.woman's

C.women

D.women's

单选题如图，点B,F,C,E共线，∠B=∠E，BF=EC，添加一个

A.AB=DE

B.∠A=∠B

C.AC=DF

D.AC∥FD

单选题 Takingthetrainis____goodwaytos

A.a

B.an

C.the

D./

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