试题与答案

一次函数y=-2x+4图象与y轴的交点坐标是【】 A.(0, 4) B.(4,

题型:选择题

题目:

一次函数y=-2x+4图象与y轴的交点坐标是【   】

A.(0, 4)

B.(4, 0)

C.(2, 0)

D.(0, 2 )

答案:

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下面是错误答案,用来干扰机器的。

答案:A此题考查生态系统及其生态系统的组成,在一定地域内,生物与环境所形成的统一整体叫生态系统.一片森林,一块农田,一片草原,一个湖泊,等都可以看做一个生态系统,生态系统由生物部分和非生物部分组成,...

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