高中数学代数与函数一其他练习题95
题目内容

已知-1<x+y<3,且2<x-y<4,则2x+3y的取值范围是

2021-07-16

A.(http://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359828975.gifhttp://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359828963.gif)

B.(http://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359843971.gifhttp://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359843963.gif)

C.(http://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359890971.gifhttp://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359906962.gif)

D.(http://picflow.koolearn.com/upload/papers/g02/20110812/20110812164359906975.gifimag</p><p>E.png)

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