出自:西南石油大学土木工程施工与组织(专升本)

动态电路是指含有( )元件的电路,其电路方程是微分方程。
·电阻.
·动态
·独立源
5F的线性电容的端口特性为( )。
·u=5i
·ψ=5i
·u= 0.2q
端口特性为ψ=3i+4的二端电路元件是( )元件。
·电感
·电容
·电阻
100电阻和0.2F电容并联电路的时间常数为( )。
·1S
·0.5S
·2S
1 0电阻和2H电感并联一-阶电路中,电感电压零输入响应为( )。
· uL(04)e-2
·uL(0+ )e-0.st
·uL(0+)(1-e-*)
4o电阻、1H电感和1F电容串联二阶电路的零输入响应属于( )情况。
·过阻尼
·欠阻尼
·临界阻尼
RLC并联正弦电流电路中,IR =34,IL =14,Ic =5A则总电流为( )A。
·8
·5
·4
L=10H,L2 =6H,M =2H的耦合电感在次级开路时,初级的等效电感为( )H.
·10
·12
·16
电流源isc(I)=8cost A与电阻R。=29并联单口网络向外传输的最大平均功率为( )W。
·4
·8
·16
(单项选择)– How about going to see a film tonight–
·Oh, it couldn’t be better.
·Yes, I will go.
·Of course.
·Yes, I think so.
(单项选择)The collapse of the World Trade Centre has put U.S. economy ia difficult ____________.
·occasion
·case
·situation
·background
(单项选择)Childreare encouraged to put ______ some of their pocket money to buy Christmas presents for the poorer ones.
·in
·off
·away
·aside
(单项选择)– He must be a top student ihis school.–
·I have doubt.
·There is no doubt about it.
·Yes. No doubt.
·It is not doubtful.
(单项选择)Without __________ music, life would be __________ mistake.
·the, the
·a, the
·/, a
·the, a
(单项选择)“__________ things” is a number of different kinds of the same thing.
·A lot of
·A great many
·A variety of
·Many a
(单项选择)_______ girl dressed _______ black is her sister Rose.
·A; in
·A; on
·The; on
·The; in
(单项选择)— _______________ — No,I don.t care for it.
·How do you think about the coffee
·Do you like the coffee
·What’s your favorite drink
·Do you like tea or coffee
(单项选择)—I was wondering if you.d like to see a film tonight. —________.
·That sounds very nice
·Me too
(单项选择)– How do you think about the result – _________________
·It’s hard to say, actually.
·No, I don’t know.
·of course not.
·I never think of it.
(单项选择)He looked upoher as a good wife and a__________ companion.
·ideal
·idealistic
·idea
·idol
(单项选择)– You are otop of the world.. –
·Yes, I got the promotion.
·You are right.
·There’s something special.
·Why do you say that
(单项选择)– Jack, let me introduce you to my former roommate, Denise Black. –
·No, I don’t.
·Yes, please.
·Nice to meet you.
·Good!
(单项选择)– Oh, my God,we’ve lost ithe forest! – Don’t worry. I’ve brought the compass and map.
·What do you have
·How clumsy I am!
·What caI do for you
·What shall we do
(单项选择)I had some trouble __________ the letter. His handwriting is very bad.
·oreading
·reading
·to read
·read
(单项选择)Art is regarded as a/a____________ of expression.
·means
·emotion
·prestige
·case
(单项选择)Our basketball team __________ to withe championship game.
·went over
·went out
·went ifor
·went all out
(单项选择)Why not joius ibaseball ____________
·Ok. I’m coming.
·You do the same.
·Don’t mentioit.
·That’s alright.
(单项选择)I’ve tried very hard to improve my English. But by no means ___________ with my progress.
·the teacher is not satisfied
·is the teacher not satisfied
·the teacher is satisfied
·is the teacher satisfied
(单项选择)He looked me right __________ the eyes and lied.
·at
·in
·for
·on
(单项选择)Haven’t seeyou for ages! What are you busy doing now ____________
·I hate the weather here.
·My hair is getting a bit longer.
·I am working part time ia bookshop, you know.
·Yeah, thanks for coming.
(单项选择)Their dormitory is ______ ours idecoration.
·likely to
·similar to
·familiar to
·intended to
(单项选择)– How are you getting owith your study –
·Thanks. And you
·I hope all goes well with you.
·Terrible.
·Not at all.
(单项选择)Eggs, though rich inourishments, have _______ of fat.
·a large number
·the large number
·a large amount
·the large a mount
(单项选择)Schumacher ____________ effortlessly to his new surroundings.
·adopted
·adapted
·accepted
·obtained
(单项选择)Childreshould be taught not to __________ handicapped people.
·glare at
·stare at
·glance at
·peep at
(单项选择)The black car drove away from them and____________
·appeared
·fled
·left
·disappeared
(单项选择)He was barred from the club for refusing to __________ by the rules.
·conform
·abide
·adhere
·comply
(单项选择)Most wage claims are settled by ____________.
·compromise
·comparable
·comfortable
·concentrated
(单项选择)–What.s the matter–
·The matter is worse.
·Nothing is serious.
·The matter is serious.
·Something is better.
the latest development of the manned spaceship was_____ to the media yesterday and make all of us excited.( )
·released
·relieved
·removed
·relaxed
the examinatiopaper_____ four parts: listening comprehension, reading comprehension, vocabulary and structure and writing.( )
·divides into
·separates into
·isolates into
·falls into
since you did not give me any reply, theI regard your silence ______refusal.( )
·as
·to
·with
·at
a study was conducted othe key to success, ____were out of our expectation.( )
·which results
·the results of which
·the results of it
·whose results
every employee ithis company has the right to enjoy five-day-salaried_____ every year.( )
·rest
·vocation
·vacation
·pastime
later, you will find if you want to make everyone _____, theyou will please none.( )
·satisfied
·to satisfy
·satisfying
·satisfy
it is said that positive attitude toward life will _____the chances of getting ill.( )
·decrease
·shrink
·diminish
·contract
before the problem grows into a big one, we have to take_____. Or we will suffer a great loss.( )
·action
·act
·acting
·activity
there are many kinds of racing _____almost every means of transportatioand physical activities.( )
·including
·involving
·included
·involved
my grandsolikes to _____ lovely pets and regards them as his best friends.( )
·arise
·rise
·raise
·arouse
The boy has admitted to（）the window while playing football yesterday.
·breaking
·having beebroken
·break
·be breaking
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