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Much _____ in the past few years.
A.has been doneB.has doneC.didD.was done
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Helen loves to talk about travel. She _____ many places.A. has gone to B. has been to C. has gone for D. has been from
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What is the main idea of the man's speech?A.Everything at State University has changed in the past ten years.B.Although the campus looks the same, some things have changed at State University.C.In spite of the changes on the campus, the commitments of the State University remain the same.D.Everything has stayed the same at State University during the past ten years.
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For many years, people electric cars. However, making them has been more difficult than predicted.A.had dreamed ofB.have dreamed ofC.dreamed ofD.dream of
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His sister ______her hometown for three years. She'll return next year.A. leftB. has leftC. has been awayD. has been away from
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Age is not the learner factor that has been an issue in second language acquisition research.()
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Much research( ) into the possibiecauses of the disease in the past few years.
A.has been doneB.was doneC.have been doneD.were done
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There has been an increasing ________ (aware) that many people are affected by crime
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During OSPF adjacency formation, in which state is a router in when an OSPF hello packet has been sent but bi-directional communication has not been achieved?()
A.AB.BC.CD.D
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Many a young scientist__engaged in the research work.A.have
B.has
C.have been
D.has been
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A research center has been set up in this university.A:praised
B:established
C:reformed
D:criticized
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He has smoked for so many years that he can()give it upAdirectlyBmostlyCexactlyDhardly
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Silk()by Chinese for thousands of years now.A、has usedB、has been usedC、was usedD、is used
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Research Is a State of Mind
For many years there has been much misunderstanding as to just what research is. The popular conception seems to be that there is something mysterious about it, and before any research can be done it is necessary to have expensive scientific apparatus and large, elaborately equipped laboratories. Actually, this is not so. (6) It is a simple, organized way of trying to accomplish something you wish to do—so simple that anyone can do research anywhere at any time.
First, you select the problem you would like to solve, then you list at least ten reasons why it has not been solved. (7) It takes just as much effort to solve a useless problem as a useful one. (8)
After carefully—and I want to emphasize that word “carefully”—selecting the problem and the ten things between you and the solution, you then use the same procedure as in solving a crossword puzzle.(9)In the solution of the remaining obstacles you may need some simple apparatus, but the things you will probably need most are infinite patience and persistence. Few people realize the difficulties of doing any new thing.
Maybe one of the reasons people are so easily discouraged is because of their education. During all our years at school we were examined two or three times a year. If we failed once, we were out. (10)If we are going to make progress, we must learn to fail intelligently so that we won't become discouraged at the 99.9 per cent failure.
9.()A、Make sure the game is worth the candle.B、That is a step in the right direction, but I don't believe it is enough.C、You take the easy obstacles first and by a process of elimination you eventually arrive at the one or two major ones.D、But in selecting the problem, you need to be sure to analyze it carefully to see that it is worth the effort.E、Research isn't a physical thing at all; it's a state of mind.F、By contrast, all research work is 99. 9 per cent failure and, if we succeed once, we are in.
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Your firm has been recommended to us by AMK company, () we have done business for many years.A、with whomB、with whoC、whomD、who
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单选题Jackson ______ school two years ago and he ______ for two years.A
leaves; has goneB
left; has been awayC
leaves; has been awayD
left; has gone
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单选题In the past 50 years, there _____ a great increase in the amount of research _____ on the human brain.A
was...didB
has been...to be done C
was...doingD
has been...done
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单选题Your firm has been recommended to us by AMK company, () we have done business for many years.A
with whomB
with whoC
whomD
who
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单选题In the past 50 years, there _____ a great increase in the amount of research _____ on the human brain.A
was...didB
has been...to be doneC
was...doingD
has been...done
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单选题Its business culture,()has brought the world “shareholder value” and “IPOs”,()commercial thinking in recent years and will continue to do so.A
which; has leadedB
which; has been leadingC
that; has leadedD
that; has been leading
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单选题For many years, Mark, a film star in Hollywood, has been suffering from the _____ that he is a great man.A
allusionB
illusionC
elusionD
delusion
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单选题In recent years many football clubs ______ as business to make a profit.A
have runB
have been runC
had been runD
will run
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单选题The author of the report is well _____ with the problems in the hospital because he has been working there for many years.A
enlightenedB
informedC
advertisedD
acquainted
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单选题The author thinks that the conclusions of any research about people’s state of mind are _____.A
surprisingB
confusingC
illogicalD
questionable
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单选题In more recent years,()has been used by civilians in many new ways to determine positions,such as in automobile and boat navigation,hiking,emergency rescue,and precision agriculture and mining.A
GPSB
GMDSSC
AISD
Navtex
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单选题While several baseball teams have tried to supplant the Yankees as the dominant team in baseball, their inability has been unable to win even half as many World Series as the Yankees have won in the past one hundred years.A
their inability has been unableB
the inability they possess has not been ableC
having been unableD
they were unableE
they have been unable
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单选题Which of the following sentences is INCORRECT?A
His father has been dead for six years.B
His father died six years ago.C
It’s six years since his father had died.D
It has been two years since his father’s death.