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【单选题】
作为结构的体系应是A.
几何不变体系
B.
几何常变体系
C.
几何瞬变体系
D.
A或C
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【单选题】Music should be taught routinely in schools because of the benefits _____ can have on the development of the brains of young children.
A.
which
B.
that
C.
one
D.
it
【单选题】The company wants to enroll three ________ this year to meet the need of its development.
A.
employers
B.
employees
C.
employing
D.
employed
【单选题】By saying “a victim of its own ubiquity and the industry’s conservative pace of development” (Line 5-6, Para. 1) , the author means that
A.
concrete suffers from its widely application as well as the slow development of building industry.
B.
concrete is not appreciated because of its dull color and other drawbacks, with little improvement as a building material.
C.
slow progress of building industry does harm to the application and popularity of concrete.
D.
concrete is ignored because it is conventional with little advance in its technology.
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