托福习题练习

托福考试易错题(2018/7/27)
1题: Almost ....... substances expand in volume when heated and contract when cooled.
A.( all
B.( they all
C.( all of
D.( all are
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2题: For an advertisement to be effective, its production and placement must to be based on a knowledge of human nature and a skilled use of the media.
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3题: According to the passage, rock breaks down into clay under all of the following conditions EXCEPT when
A.(it is exposed to freezing and thawing
B.( roots of trees force their way into cracks
C.( it is combined with alkalies
D.( natural forces wear away the Earth's crust
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4题: According to the passage, what do squirrels do when large quantities of acorns are available
A.They do not store acorns
B.They eat more than 74 percent of available acorns
C.They do not retrieve all the acorns that they have stored
D.They hide acorns in tree cavities
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5题: The passage implies that the warmest temperatures among the periods mentioned occurred
A.( in the early eighteenth century
B.( 160,000 years ago
C.( at the end of each ice age
D.( between 360 and 285 million years ago
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