一道GMAT数学题(OG上的）应该不难的 可不知卡在哪儿了.John has 10 pairs of matched socks.If he loses 7 individual socks,what is the greatest number of pairs of matched socks he can have left?A.7 B.6 C.5 D.4 E.3 为什么不是A呢?

一道GMAT数学题(OG上的）应该不难的 可不知卡在哪儿了.John has 10 pairs of matched socks.If he loses 7 individual socks,what is the greatest number of pairs of matched socks he can have left?A.7 B.6 C.5 D.4 E.3 为什么不是A呢? 问一道OG上的SAT数学题, 一道GMAT的数学题 一道关于GMAT的数学题 GMAT高分难不难考的?自己做了OG,不是很乐观,挺担心的,GMAT很难考吗? 为什么GMAT的OG那么贵啊? 一道sat的数学题 og上585页 18题有没有人会做这道题,请详解, GMAT的一道题, 不难的数学题 一道GMAT OG上的数学题Of the 230 single-family homes built in City X last year,how many were occupied at the end of the year?(1)Of all single-family homes in City X,90 percent were occupied at the end of last year.(2)A total of 7200 single-fami 我想问GMAT的OG中文解释哪里有? GMAT一道数学题, GMAT的og里有作文题库?我买的是og的12版,那个题库是全的吗?还要去CD上下载吗? gmat og 12书gmat的..这书什么内容..什么作用 应该不难的题. 问一道数学题 不难 一道计算题,不难呃不难的, SAT OG, P797/10一道OG上的数学题,帮忙翻译一下.各位大侠哪位帮忙翻译一下OG上一道数学题啊?原题是：Philip used four pieces of masking tape, each 6 inches long, to put up each of his posters. Philip had a 300 foot rool o