- UID
- 684190
- 在线时间
- 小时
- 注册时间
- 2011-10-20
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
關於資料充分性：
OG-14題
If Car X followed Car Y across a certain bridge that is12 mile long, how many seconds did it take Car X to
travel across the bridge?
(1) Car X drove onto the bridge exactly 3 secondsafter Car Y drove onto the bridge and drove off the bridge exactly 2 seconds after Car Y droveoff the bridge.
(2) Car Y traveled across the bridge at a constantspeed of 30 miles per hour.
可否各位幫忙解釋第一項原因：
(1) If Car X drove onto the bridge 3 seconds after Car Y and drove off the bridge2 seconds after Car Y, then Car X took1 second less to cross the bridge than Car Y.Since there is no information on how longCar Y took to cross the bridge, there is noway to determine how long Car X took tocross the bridge; NOT suffi cient.
意思是說x上橋時是三秒剛好y下橋是是兩秒～所以x和y剛好差一秒？？
看不是考點～可否幫忙解釋？？？
OG-18題
What is the maximum number of rectangular blocks,each with dimensions 12 centimeters by 6 centimeters
by 4 centimeters, that will fi t inside rectangular Box X ?
(1) When Box X is fi lled with the blocks and restson a certain side, there are 25 blocks in thebottom layer.
(2) The inside dimensions of Box X are60 centimeters by 30 centimeters by20 centimeters.
這題完全不知道考點在哪裡？？
可否解釋一下？？這題答案我選A！！不知錯在哪裡？？
拜託各位了～就當作是復習吧！！謝謝Cder們！！！ |
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2012-3-11 03:30:24
收藏
收藏
楼主