[求助]gwd5-23

olakala

实在弄不明白该题是什么意思，请指教

Q23:

 

 

+	x	y	z
d			m
e		n
f

 

 

 

 

The figure above shows two entries, indicated by m and n, in an addition table.  What is the value of n + m?

(1)     d + y = -3

(2)     e + z = 12

                  

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

Answer: C

[此贴子已经被作者于2009/8/10 9:54:35编辑过]

jeffmou

按照我的理解

m=d+z

n=e+y

m+n = d+z+e+y=-3+12

所以选择C

fytpyys

同意上面的解法！

fytpyys

这是一个变体题 原题是求具体的数 m=d+z n=e+y

olakala

哦，对，应该是这样的，谢谢了