[求助]9月math机经209

tyou

209) 老JJ：温度计题。说有一支温度计，图上画了6个格子，最上面的是Y，紧下面的是要求的，再往下一个是X，再下面两个格是0，0下一格是Z，求从上往下的第二格是多少度？
(a). X+Z=20
(b). Y-X=40
参考答案:.E


I was totally lost here.

Zeros

-Y

-要求的

-X

-

-0

-Z

[此贴子已经被作者于2003-9-22 9:33:26编辑过]

atongmu

我觉得这道题目如果有条件说刻度等分的话，答案应该是D。

ruthere

我想正常情况下, 一般用"温度计"其实就暗示了是等分的......

tyou

I think that answer should be   B   because :   Y-X=40     each scale =40/2

From 0  -  the one asked , there are three  scales,   so     we can get 20X3 = 60

How do you think?

braveMBA

why not D?

Z is + or -?

wisely

Z < 0 , because Z is under 0 , according to

--  作者：Zeros
-Y

-要求的

-X

-

-0

-Z

then , i think answer B is more correct !!