首页
登录
职称英语
While working on a case Dr Watson accidentally fell down a 30ft dry wishing well
While working on a case Dr Watson accidentally fell down a 30ft dry wishing well
游客
2024-08-08
51
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/3711413.html
相关试题推荐
Itisastonishinghowlittleisknownabouttheworkingofthemind.Buthow
Itisastonishinghowlittleisknownabouttheworkingofthemind.Buthow
Itisastonishinghowlittleisknownabouttheworkingofthemind.Buthow
[originaltext]WhenIwasinBritishColumbialastJulyworkingatthedepar
[originaltext]WhenIwasinBritishColumbialastJulyworkingatthedepar
Itisastonishinghowlittleisknownabouttheworkingofthemind.Buthow
Itisastonishinghowlittleisknownabouttheworkingofthemind.Buthow
Theabilitytozoom______isparticularlyusefulwhenyouareworkingondetail
Manypeoplemakecorn【71】abouttheirworkingenvironment.Thoseinopen-plan
Manypeoplemakecorn【71】abouttheirworkingenvironment.Thoseinopen-plan
随机试题
Longaftertheday’scatchhadbeenbroughtashore,thesmelloffishstill_____
Itis,everyoneagrees,ahugetaskthatthechildperformswhenhelearnst
ThemovieactorArnoldSchwargenegger,whoisrunningforgovernorofCalifornia
Inbringingupchildren,everyparentwatcheseagerlythechild’sacquisitio
患者,女,28岁,尿频尿痛一周,尿常规:白细胞(+),红细胞(+),消炎治疗好转
一个有30个节点的二叉树深度至少为()。A.3 B.5 C.7 D.
细菌性肝脓肿和阿米巴肝脓肿的最主要鉴别依据为()A.粪常规 B.血常规
共用题干 王先生在2000年采用按揭贷款购房,支付首付40万元,并取得房屋的产
辅导教师将接受辅导学生表达出来的思想、观念或流露的情绪,加以综合整理,用自己的语
进度的计划值和实际值的比较应是定量的数据比较,可以成为比较成果的有()。A.总进
最新回复
(
0
)