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【判断题】
对于一个内外形状都复杂的对称形体，且对称面上无图线时，可采用半剖面图方式来表达。A.
正确
B.
错误
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【单选题】Which one of the following items is NOT a main purpose of an analogy?
A.
make a statement more vivid
B.
make a statement more humorous
C.
use familiar or concrete things to illuminate new abstract concepts
D.
classify or illuminate a concrete concept with an abstract concept
【单选题】One main purpose of a speech of introduction is to __________.
A.
plain why the person being introduced is receiving her or his award
B.
spire the audience with a sense of the significance of the occasion
C.
eate a welcoming climate to build enthusiasm for the main speaker
D.
plain why listeners should pay tribute to a person, idea, or institution
【单选题】The main purpose of Paragraph 3 is to
A.
examine how one of Aesop's fables sheds light on certain facets of Greek belief.
B.
dissect one of Aesop' s fables in order to study the elements that make up Greek mythology.
C.
learn from the lesson Presented in one of Aesop' s most well-known fables.
D.
illustrate a fable typical of Aesop' s style, so as to examine how one goes about studying the meaning behind it.
【单选题】The main purpose of telling the story of the cowboy is
A.
to show that one doesn't have to read books to acquire knowledge.
B.
to show that one should travel a lot to learn about the world.
C.
to show that nature can be a best textbook for us.
D.
to show that one should learn to love his country by travel.
【单选题】The main purpose of the last paragraph is to _____.
A.
argue in favor of one side on a particularly controversial topic of cloning.
B.
display both sides' arguments on another contentious issue in cloning.
C.
redirect the readers' attention to the previously raised issue of ethics in cloning.
D.
provide further relevant information to the evaluation of cloning as a preservation technique.
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