【单选题】 Over a very large number of trials, the probability of an event ______ is equal to the probability that it will not occur.
A.occurring
B.occurred
C.occurs
D.occur
A.occurring
B.occurred
C.occurs
D.occur
【单选题】 The prisoner________that he had assaulted a policeman.
A.denied
B.rejected
C.contradicted
D.refused
A.denied
B.rejected
C.contradicted
D.refused
【单选题】 Human beings are superior to animals that they can use language as a tool of communication.
A.in that
B.in which
C.for that
D.for which
A.in that
B.in which
C.for that
D.for which
【单选题】 After you've started to master the techniques, the real struggle is just beginning. It's ______ that makes you great.
A.persistence
B.insistence
C.continuation
D.mentality
A.persistence
B.insistence
C.continuation
D.mentality
【单选题】 In writing the last sentence, the author ______.
A.(A) reaches the conclusion of the passage.
B.(B) criticizes the competition in the IT industry.
C.(C) reveals his real attitude toward the comparison of Microsoft and Google.
D.(D) adopts a satirical tone.
A.(A) reaches the conclusion of the passage.
B.(B) criticizes the competition in the IT industry.
C.(C) reveals his real attitude toward the comparison of Microsoft and Google.
D.(D) adopts a satirical tone.
【单选题】 Lack government support, they had to approach sponsors, organizers, and musicians on their own—at first, she claims, in her country.
A.Lacks
B.Lacked
C.Lacking
D.A lack of
A.Lacks
B.Lacked
C.Lacking
D.A lack of
【单选题】 Only one-fifth of Americans saw oil as the chief reason that the U.S. made a war on Iraq, but 75 percent of the French and of the Russians believed________.
A.to
B.so
C.go
D.do
A.to
B.so
C.go
D.do
【单选题】 The author's purpose is to ______.
A.give the basic facts of marriage in North America
B.explain the reasons why the divorce rate is high in North America
C.introduce why both husband and wife have to work outside their home
D.give a picture of family structural change in North America
A.give the basic facts of marriage in North America
B.explain the reasons why the divorce rate is high in North America
C.introduce why both husband and wife have to work outside their home
D.give a picture of family structural change in North America
【单选题】 More has been learned about the Moon than any other of the Earth's neighbors in space because of the Apollo program, which enabled men to walk on the Moon and bring back hundreds of pounds of ______.
A.rocks
B.rock
C.stone
D.stones
A.rocks
B.rock
C.stone
D.stones
【单选题】 Table tennis is easy to learn, and, by the same token, boys don't need a lot of space to practice it.
A.by the same rule
B.symbolically
C.moreover
D.by logic
A.by the same rule
B.symbolically
C.moreover
D.by logic
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