西交《专业英语》在线作业

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Can you do the work with _____ money and _____ people?
A:less,fewer
B:fewer,less
C:little,less
D:lest,fewest

Although he had looked through all the reference material on the subject, he still found it hard to understand this point and her explanation only (_______)to his confusion.
A:extended
B:amounted
C:added
D:turned

These are all (_______) demands.
A:reasonable
B:available
C:logical
D:formal

_____ carries data out to speakers and headphones, or back from a microphone.
A:A graphics card
B:A modem
C:A network card
D:A sound card

A desktop computer’s sound card sends signals to external _____.
A:printer
B:speaker
C:Modem
D:keyboard

The precision of ADC ( analog-to-digital conversion ) is determined by _____.
A:its speed
B:its gain
C:the accuracy of the reference voltage
D:the number of binary bits

Anne couldn't concentrate(_______)what she was doing while her families were watching TV.
A:to
B:on
C:for
D:in

A transformer is a device that can convert one ac voltage to another ac voltage through the action of (  ).
A:an electric circuit
B:a magnetic field
C:an electric field
D:a coupling circuit

(_______) finishing his homework, he had to stay home at the weekend.
A:Not having
B:Having not
C:Being not
D:Having not being

Let's go by car. It's _______.
A:cheap a lot
B:cheap much
C:more cheap
D:much cheaper

She would make a teacher far (_______) to the average.
A:superior
B:better
C:favorable
D:popular

The village was (_______) two or three groups of simple houses, a church, a post office and a small general store.
A:composed of
B:consisted of
C:made of
D:built with

It is reported that two cars (_______) into each other this morning on the highway, killing both driver and two passengers.
A:crawled
B:crouched
C:pressed
D:crashed

I would die (_______) marry him!" she screamed.
A:instead of
B:rather than
C:other than
D:more than

The distance protection is applied to protect _____.
A:transformers
B:generators
C:transmission lines
D:buses

How much a man can earn depends (_______) his skills.
A:along
B:at
C:on
D:with

I like to get up early so that I can get plenty of work (_______) before lunch.
A:done
B:being done
C:to do
D:to be done

Most desktop computers use a separate (  ) as a display device, where notebook computers use a flat panel LCD screen (liquid crystal display screen) that attached to the system unit.
A:keyboard
B:Mouse
C:Monitor
D:hard disk

Copper losses are _____ losses in the primary and secondary windings of the transformer core.
A:inductive
B:capacitive
C:resistive
D:reactive

The objective of the optimal economic operation of power systems is _____.
A:to minimize the total production cost
B:to maintain frequency constant
C:to maintain voltages constant
D:to ensure balance between generation and load

As I felt so much better, my doctor (_______) me to take a holiday by the sea.
A:suggested
B:considered
C:advised
D:inquired

The electric machine that operates at speeds above synchronous speed works in (  ) region.
A:motoring
B:generating
C:plugging
D:stopping

The government is taking effective measures to overcome (_______) difficulties.
A:average
B:radical
C:current
D:typical

Could I use your dictionary for a moment? -----(_______).
A:It's well
B:It doesn't mattter
C:By all means
D:I have no idea

Her eyes were filled (_______) tears.
A:of
B:with
C:in
D:along

The proposal seems quite good, but I can’t easily (_______) without all the facts.
A:join
B:judge
C:say
D:speak

The teacher advised Joe to___before deciding to quit school.
A:think about
B:think twice
C:think up
D:think over

Good morning, Dr. Johnson‘s office. Can I help you? -- (_______) .
A:Speaking, please.
B:I'd like to make an appointment,please
C:Yes, go on
D:No, you can't

Mary’s bother promised to go to London with us, but now he is considering___.
A:he doesn’t go
B:not to go
C:not going
D:not go

She is an easy-going girl. _________ you meet her, she will smile to you.
A:As
B:Everything
C:While
D:Since

Professor Wang tried to(_______)the two philosophers with each other.
A:compared
B:accused
C:sugggested
D:speak

What would you like to have, meat or fish?      ---  (_______) .
A:Either will do
B:Yes, I like meat
C:Yes, I like fish
D:No, they are not my favorite

The ship set out for the (_______) of the ocean depths.
A:exploration
B:explosion
C:expose
D:exposition

Delphi belongs to _____.
A:low-level programming language
B:high-level programming language
C:a programming language connected with the computer hardware behavior
D:an assembly language

We have come to a critical moment. You must take immediate (_______) .
A:act
B:action
C:activity
D:doings

The hydropower is well suited for switching according to _____ command to meet changing power needs.
A:a consumer’s
B:a user’s
C:a dispatcher’s
D:an operator’s

Image clarity on a computer screen is measured with _____.
A:screen size
B:dot pitch
C:resolution
D:color depth

The primary winding is connected to (  ).
A:the power source
B:the load
C:the measurement instrument
D:the motor

Have you read about the (_______) of Marco Polo ?
A:operations
B:adventures
C:knowledges
D:temperaments

I _____on a sofa because my parents have come for the weekend.
A:slept
B:was sleeping
C:have slept
D:am sleeping

He drives much _____ than he did three years ago.
A:careful
B:carefully
C:more careful
D:more carefully

—I always look out when crossing the street.—You’re right. You cannot be too______.
A:nervous
B:careful
C:hurried
D:careless

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A:A
B:B
C:C
D:D

Kate has some apples. Jim has ___ apples than Kate. Meimei has _____ of all.
A:more,the most
B:the most,more
C:more,most
D:many,the more

Passengers on the London train are being asked to go off and (_______) to another.
A:transfer
B:translate
C:transform
D:travel

The discussion (_______) a wide range of subjects.
A:covered
B:conveyed
C:filled
D:concluded

They thought the program was (_______) investigating．
A:worth
B:worthy
C:worthwhile
D:worthing

After having a good holiday, they are very keen to (_______) business.
A:get along
B:get to
C:get in
D:get over

Most desktop computers use a separate _____ as a display device, where notebook computers use a flat panel LCD screen (liquid crystal display screen) that attached to the system unit.
A:keyboard
B:Mouse
C:Monitor
D:hard disk

-________ you ________ free tomorrow?– No. I ________ free the day after tomorrow.
A:Are;going to;will
B:Are;going to be;will
C:Are;going to;will be
D:Are;going to be;will be