配套习题- 如何利用比例线段的性质解题 -【青果学院】

1/5单选题

难度：

1.已知

则

的值是（）

A
B
C
D

正确答案：RA==

6Kej77ya4oi1PGltZyB3aWR0aD00OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wQy9GMi9yQkFDRkZQSTdNaXh0TG9BQUFBQjBrWDVIdjgxNjQucG5nIj7vvIzlj6/orr5iPTVr77yM5YiZYT0xM2s8YnI+4oi0PGltZyB3aWR0aD0yNyBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wQy9GMi9yQkFDRkZQSTdNZkRBSDJUQUFBQmRDX1Q1UmszMjAucG5nIj49PGltZyB3aWR0aD04MSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC80QS8wNS9yQkFDRTFQSTdNaVRoc3h5QUFBQ1dodzJjNTQ3MDYucG5nIj48YnI+4oi06YCJRA==

2/5单选题

难度：

2.已知x：y=3：2，则x：（x+y）=（　　）

A
B
C
D

正确答案：Qg==

6Kej77ya4oi1eO+8mnk9M++8mjLvvIw8YnI+4oi0eO+8mu+8iHgree+8iT0z77ya77yIMysy77yJPTPvvJo1LiA8YnI+5pWF6YCJQi4g

3/5单选题

难度：

3.如果x：y=2：3，则下列各式不成立的是（　　）

A
B
C
D

正确答案：RA==

6Kej77ya5Y+v6K6+eD0ya++8jHk9M2suIOmAmui/h+S7o+WFpeiuoeeul++8jDxicj7ov5vooYznuqbliIbvvIxB77yMQu+8jEPpg73mraPnoa7vvJs8YnI+ROS4jeiDveWunueOsOe6puWIhu+8jOaVhemUmeivry4gPGJyPuaVhemAiUQuIA==

4/5单选题

难度：

4.已知

（a+b+c≠0），那么y=kx+k的图象一定不经过（　　）

A	第一象限
B	第二象限
C	第三象限
D	第四象限

正确答案：RA==

6Kej77ya5b2TYStiK2PiiaAw5pe277yM5qC55o2u5q+U5L6L55qE562J5q+U5oCn6LSo77yM5b6Xaz08aW1nIHdpZHRoPTk5IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzBDL0YyL3JCQUNGRlBJN01fQ25MNmdBQUFDZmdFLW9LQTkxMy5wbmciPjxicj7liJnnm7Tnur/op6PmnpDlvI/mmK95PTJ4KzLvvIw8YnI+5qC55o2ua+WSjGLnmoTnrKblj7fvvIzliJnlm77osaHkuIDlrprnu4/ov4fkuIDjgIHkuozjgIHkuInosaHpmZAuIDxicj7mlYXpgIlELiA=

5/5单选题

难度：

5.若互不相等的四条线段的长a、b、c、d满足

，m是任意实数，则下列各式中，一定成立的是（　　）

A
B
C
D

正确答案：RA==

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