单项选择题

《无障碍设计规范》对人行天桥、人行地道的扶手设计作了相应的规定，下列哪条表述不符合规范要求？( )

A.扶手高应为0.85～0.90m，设上、下两层扶手时下层扶手高应为0.65～0.70m
B.扶手应保持连贯，在起点和终点处应延伸0.40m
C.扶手下方为落空栏杆时，应设高不小于0.10m的安全挡台
D.人行地道的坡道和梯道入口两侧的护墙高于0.85m时，在墙顶应安装护栏或扶手
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Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep.Cats increase their regular sleep with occasional cat naps（打盹）.Some experts feel that humans could also benefit from this habit.Cat naps help to build up energy in the body.They are also a good way to get rid of trouble!Since cats have the same moods（情绪）as humans,some experts behave that people can improve their moods.People might become happier.A number of famous people have copied cats by taking cat naps during the day.The naps would usually last from 15 to 30 minutes.Winston Churchill took cat naps.So did Presidents Harry Truman,John F.Kennedy and Lyndon B.Johnson.These famous men were known for their energy.They were also able to work long hours,often into the night.Napping was their secret.Perhaps more people learn from cats and take naps to feel better and live longer!Taking cat naps__________.
A.willmakeapersonlazyandtired
B.isabadhabit
C.willmakepeoplefeelbetter
D.canhelppeoplebecomefamous
单项选择题
下列图示围护结构中，( )保温性能最好。
A.
B.
C.
D.
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