在电流给镍铬电池充电的过程中,有2×103J的电能转化为 _________ 能

题型:填空题

问题:

在电流给镍铬电池充电的过程中,有2×103J的电能转化为 _________ 能;那么,电流就做了 _________ J的功.

考点:电功或电能的计算
题型:填空题

下颌骨骨折好发部位中,哪项可除外

A.颏孔区

B.髁状突颈部

C.喙突

D.正中联合部

E.下颌角区

题型:填空题

So it is today.Schedule disaster functional misfits,and system bugs all arise because the left hand doesn’t know what the right hand is doing.As work (31), the several teams slowly change the functions,size, and speeds of their own programs, and they explicitly or implicitly (32) their assumptions aboutme inputs available and the uses to be made of the outputs.

For example, the implementer of a program-overlaying function may run into problems and reduce speed relying on statistics that show how (33) this function will arise in application programs.Mean-while back at the ranch, his neighbor may be designing a major part of the supervisor so that it criticallydepends upon the speed of this function.This change in speed itself becomes a major specificationchange, and it needs to be proclaimed abroad and weighed from a system point of view.

How, then, shall teams (34) with one another In as many ways as possible.

·Informally.Good telephone service and clear definition of intergroup dependencies will encourage the hundreds of calls upon which common interpretation of written documents depends.

·Meetings.Regular project meetings, with one team after another giving technical briefings, are (35).Hundreds of minor misunderstandings get smoked out this way.

·Workbook.A formal project workbook must be started at the beginning.

(35)处填()。

A.worthless

B.valueless

C.useless

D.invaluable

题型:填空题

A man found the cocoon (茧) of a moth (蛾). He took it home so that he could    1  the moth come out of the cocoon. On that day a small   2  appeared. He sat and watched the moth for several hours as the moth struggled to   3  the body through that little hole. Soon it seemed to stop making any progress. It appeared as if it had    4  as far as it could and it could go no further. It just seemed to be stuck. So the man, out of his kindness, decided to help the moth. He took a pair of scissors and cut off the  5___  bit of the cocoon. The   6  then came out easily. But it had a swollen body and small, shriven (无用的) wings. The man continued to watch the moth because he expected that, at any moment, the wings would enlarge and   7  to be able to support the    8  , which would get smaller in time. Neither happened! In fact, the little moth spent the rest of its life   9  around with a swollen body and shriven wings. It was   10  able to fly.
What the man in his kindness   11  was that the small cocoon and the  12__of the moth to get through the   13  opening was a way to push fluid (液体)   14  the body of moth   15   its wings so that it would be ready to fly   16  it got out of the cocoon. Freedom and    17  would come only after the struggle. By taking the struggle away, he also took away the moth’s health.
Sometimes struggles are exactly what we need in our lives. If we were to   18  our lives without any difficulties, we would become disabled. We would not be as    19  as what we could have been. Give every opportunity a chance. Leave no room for   20   .
小题1:
A.help B.protect C.watch D.see
小题2:
A.opening B.line C.moth D.butterfly
小题3:
A.push B.draw C.make D.force
小题4:
A.got B.done C.tried D.struggled
小题5:
A.covering B.remaining C.shell D.skin
小题6:
A.moth B.butterfly C.cocoon D.worm
小题7:
A.lessen B.widen C.expand D.shorten
小题8:
A.standing B.flight C.themselves D.body
小题9:
A.flying B.crawling C.walking D.lying
小题10:
A.already B.certainly C.never D.seldom
小题11:
A.shouldn’t do B.thought C.didD.didn’t understand
小题12:
A.crawling B.struggle C.fight D.force
小题13:
A.tiny B.beginning C.right D.above
小题14:
A.in B.on C.by D.from
小题15:
A.into B.to C.in D.onto
小题16:
A.after B.once C.before D.until
小题17:
A.courage B.hope C.flight D.survival
小题18:
A.stand on B.get on C.go through D.live
小题19:
A.great B.determined C.brave D.strong
小题20:
A.regrets B.death C.failure D.wishes
题型:填空题

常见的电力系统事故有哪些?

题型:填空题

外侧膝状体神经元的感受也是().

A.直线式

B.圆式

C.同心圆式

D.长方形式

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