A.began their discovery earlier than the professionals
B.tend to be the leaders in the area of astronomy
C.have some advantages in discovering new comets
D.established some theories on how comets come into being
A.to introduce some famous historical events
B.to explain some traditional beliefs about comets
C.to demonstrate the harm it has done to man
D.to show its significance to human history
开始考试点击查看答案A.comets are the most commonly seen astronomical bodies
B.comets, meteor fragments and the asteroids are mysterious
C.not much is known about comets
D.nothing do we know about comets except guesses
开始考试点击查看答案A.a news article
B.a preface
C.a research report
D.a journalist interview
开始考试点击查看答案A.The psychologist.
B.The physician.
C.both A and B.
D.The patient.
开始考试点击查看答案A.but most of them wish to stay away from it
B.and many of them hope to be interviewed some day
C.but most of them may not have been interviewed in person
D.and many of them would like to acquire a true understanding of it
开始考试点击查看答案A.has no solid form
B.wanders like a frozen lump when it's far out in space
C.requires the warmth of the sun to survive
D.is always followed by a long tail
开始考试点击查看答案A.They are great in number.
B.Their arrivals used to frighten human beings.
C.They are named after their discoverers.
D.They are large mushy snowballs of frozen ices and gases.
开始考试点击查看答案A.First, TV ad always spares no effort to grasp audience's attention, as shown in an ad made by the ad-department of a TV studio to promote itself.
B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.
C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.
D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advanc
E.E.Television, originated from art, ultimately surpassed it.
G.B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advance.E.Television, originated from art, ultimately surpassed it.F.Today TV ads have become one of the representatives of modern business operation.
H.A.First, TV ad always spares no effort to grasp audience's attention, as shown in an ad made by the ad-department of a TV studio to promote itself.B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advance.E.Television, originated from art, ultimately surpassed it.F.Today TV ads have become one of the representatives of modern business operation.G.Television, of the same blood with movie, has also borrowed much from this comparatively mature art form in creating advertisements.A. B. C. D. E. F. G.
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