（b) Using models where appropriate, what are likely to be the critical success factors （CS

A.costaggregation

B.reserve analysis

C.parametricestimating

D.funding limit reconciliation

The(72)technique involves using project characteristics in a mathematical model to predict total project costs. Models can be simple or complex.

A．Cost Aggregation

B．Reserve Analysis

C．Parametric Estimating

D．Funding Limit Reconciliation

The (74) technique involves using project characteristics in a mathematical model to predict total project cost models Can be simple or complex．

A．reserve analysis

B．cost aggregation

C．parametric estimating

D．funding limit reconciliation

The(7)technique involves using project characteristics in a mathematical model to predict total project cost. Models can be simple or complex.

A．cost aggregation

B．reserve analysis

C．parametric estimating

D．funding limit reconciliation

peed recognition will make the operation of a computer easier．Mrtual reality（虚拟现实），the technology of（71）with a computer using all of the human senses, will also contribute to better human and computer（72）．Other, exotic（奇异的）models of computation are being developed, including biological computing that uses living organisms, molecular computing that uses molecules with particular （73），and computing that uses DNA, the basic unit of heredity（遗传）to store data and carry out operations． These are examples of possible future computational platforms that, so far, are limited in abilities or are strictly（74）．Scientists investigate them because of the physical limitations of miniaturizing circuits embedded in silicon．There are also （75） related to heat generated by even the tiniest of transistors． （71）A.interact B.interacting C.communicate D.using （72）A.interfaces B.behavior C.similarities D.comparison （73）A.software B.properties C.programs D.hardware （74）A.empirical B.real C.practical D.theoretical （75）A.developments B.advantages C.limitations D.improvements

d recognition will make the operation of a computer easier.Mrtual reality（虚拟现实），the technology of(71)witha computer using all of the human senses, will also contribute to better human and computer(72).Other, exotic（奇异的）models of computation are being developed, including biological computing that uses living orgarusms, molecular computing that uses molecules with particular (73)，and computing that uses DNA, the basic unit of heredity（遗传）to store data and carry out operations. These are examples of possible future computational platforms that, so far, are limited in abilities or are strictly(74).Scientists investigate them because of the physical limitations of miniaturizing circuits embedded in silicon. There are also (75) related to heat generated by even the tiniest of transistors.

(71)A．interact

B．interacting

C．communicate

D．using

(72)A．interfaces

B．behavior

C．similarities

D．comparison

(73)A．software

B．properties

C．programs

D．hardware

(74)A．empirical

B．real

C．practical

D．theoretical

(75)A．developments

B．advantages

C．limitations

D．improvements

Maria Mitchell(1818-1889,the first woman astronomer(天文学家)in the United States, was born in Nantucket. Massachusetts. Her parents valued education and insisted on giving her the same quality of education that boys received.

Her father. William Mitchell, was an astronomer and teacher himself. When he built his own school, Maria became a student and also a teaching assistant to him. At home. Marias father taught her to watch the stars and other natural objects in space using his personal telescope(望远镜).

Later she went to work at the library of the Nantucket Atheneum. Over the next tweny years. she further developed her interest in reading as many books as she could.She spent her nights watching the sky closely with her father.

On October 1, 1847,Maria discovered a comet(彗星 )by merely using a two-inch telescope. Some years before, King Frederick VI of Denmark had set up prizes to each discover of a"telescopic comet". The prize was to be given to the"first discoverer"of each such comet because comets were often discovered by more than one person.

There was once a question of who should be the winner. As the story goes, francesco de Vico had discovered the same comet two days later, but had reported it to the European vor. She won the prize in 1848 and became a big name the world over. The comet was named“ Miss mitchell&39;s Comet.”

What ean be learnt about Marias parents according to the text？

A.They came from low-income families.

B.They gave Maria equal chance for education

C.They were both astronomers

D.They were both teachers.

When did Franeeseo de Vico discover the comet？A.In1818

B.In1889

C.In1848

D.In1847

What problem did Maria meet with in winning the prize？A.She named the comet on her own

B.She did not use the required telescope.

C.She did not report her discovery in time

D.She discovered the comet with her father

Whe played the most important role in Maria's great achievement？A.King FrederickⅥ

B.Francesco de Vico

C.Her father

D.Her mother

请帮忙给出每个问题的正确答案和分析，谢谢！

A.做什么(WhA t)

B.为什么要做(Why)

C.何时做(WhE n)

D.何地做(WhE rE )

E.何人做(Who)

F.是否要做(WhE thE r)

A.in the position of

B.because

C.At the time whe

D.the thing that

A.A.how

B.B.that

C.C.which

D.D.what