ChaseDream
标题:
几道数学JJ请问……
[打印本页]
作者:
danielleruc
时间:
2009-11-21 15:53
标题:
几道数学JJ请问……
<!-- /* Font Definitions */ @font-face {font-family:宋体; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:SimSun; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;}@font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:1; mso-generic-font-family:roman; mso-font-format
ther; mso-font-pitch:variable; mso-font-signature:0 0 0 0 0 0;}@font-face {font-family:"\@宋体"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:10.0pt; font-family:"Times New Roman","serif"; mso-fareast-font-family:宋体; mso-font-kerning:1.0pt;}.MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; font-size:10.0pt; mso-ansi-font-size:10.0pt; mso-bidi-font-size:10.0pt; mso-ascii-font-family:"Times New Roman"; mso-fareast-font-family:宋体; mso-hansi-font-family:"Times New Roman"; mso-font-kerning:0pt;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}-->
76
、上月机经变体,一个人总是喜欢把买来的东西四舍五入那题,问他买的东西的价格差是否小于10
1)
他买的60%的东西的差价总和小于等于5
2
)他总共买了15件东西
这类题目怎么算?我总是看不大懂呃……
作者:
张大猴
时间:
2009-11-21 16:37
弱弱地推断下。。。
76应该选E吧。第一个条件,买的60%的东西的差价总和小于等于5,另外40%的东西差价无法确定。
由买了多少件东西也推不出来
作者:
切尔西
时间:
2009-11-21 16:56
我上个月遇到过那道题,不过忘记当时选了什么,这里这个应该是选B吧?不知道各位NN意见如何
作者:
zxcasdqwe
时间:
2009-11-21 17:12
恩我也觉得选B
作者:
风空寂
时间:
2009-11-21 18:34
这道题我在前面的帖子也问来着,有两种答案,D和B,讲的都很有道理,我比较犹豫
欢迎光临 ChaseDream (https://forum.chasedream.com/)
Powered by Discuz! X3.3