首页
登录
职称英语
While working on a case Dr. Watson accidentally fell down a 30ft dry wishing wel
While working on a case Dr. Watson accidentally fell down a 30ft dry wishing wel
游客
2023-10-13
7
管理
问题
While working on a case Dr. Watson accidentally fell down a 30ft dry wishing well. Sherlock Holmes lowered him down a rope.
"Can you climb up?" shouted Holmes.
"I’ll be out before you know it. " came Watson’s reply.
But the climb wasn’t as easy as Watson had first imagined. Each hour he managed to climb 3ft—but slipped back 2ft.
How long did it take Watson to get out?
选项
答案
28 hours
解析
他一小时爬3ft,倒退2ft,就相当于一小时爬1ft,当他爬了27小时后,爬了27ft,那么剩下的3ft正好还需要一个小时,故共需28小时。
转载请注明原文地址:https://tihaiku.com/zcyy/3093530.html
相关试题推荐
Sometypesofsocialnetworkingsitearepopularbutaccessisusually________
HolmesandWatsonhadapprehendedthreepeopleonsuspicionofshoplifting.The
Youaretryingtofillabathwithbothtapson,buthaveaccidentallyleftout
Youaretryingtofillabathwithbothtapson,buthaveaccidentallyleftout
Solvetheproblembyworkingoutthelettercodes.Inacode,SECONDiswritten
HolmesandWatsonhadapprehendedthreepeopleonsuspicionofshoplifting.The
HolmesandWatsonhadapprehendedthreepeopleonsuspicionofshoplifting.The
HolmesandWatsonhadapprehendedthreepeopleonsuspicionofshoplifting.The
It’samazingthattworesearchersworkingindependentlymadethesamediscovery
Mostofthepeopleworkinginthecharityshopsarevolunteers.Charityshopsa
随机试题
[originaltext]W:Simon,couldyoureturnthetoolsIlentyouforbuildingthe
Thechangesinlanguagewillcontinueforever,butnooneknowssurewhodoe
Thefirsttwostagesinthedevelopmentofcivilizedmanwereprobablythei
干粉灭火器扑救可燃、易燃液体火灾时,应对准()扫射。A.火焰上部 B.火焰中
拥塞是接收端处理能力不足的表现。()
会计报表附注的主要作用不包括( )。A.在一定程度上反映会计报表是否真实,反映
下列关于销售与收款循环的审计程序正确的有( )。 Ⅰ.附有销售退回条件的商品
3×999+8×99+4×99+8+7=()A.3840 B.3855
采用问卷调查法设计绩效考评指标体系的具体步骤有哪些?
水的硬度是指( )。A.溶于水中钙、镁等盐类的总量 B.水煮沸后所形成的碳酸
最新回复
(
0
)