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【单选题】
线材（ ）是指将多根硬质线材依照一定排列的规律， 彼此搭接形成的上下左右排列有序的多层次的立体造型。是靠重力和接触面的摩擦力来维持形体，要注意材料间摩擦力的大小和重心的位置，各个构件相的倾斜角不要大，否则就会引起滑动而成为不稳定结构。A.
垒积构成
B.
连贯构成
C.
框架构成
D.
网架构成
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【简答题】Please put Mary ' s things back where you found them ______ she won ' t know where they are. [A] and [ B] or [C] but [D] then
【单选题】Please put Mary's things back where you found them ______ she won't know where they are.
A.
and
B.
or
C.
but
D.
then
【单选题】—Where’s Mary? —She’s ________ the classroom.
A.
in front of
B.
between
C.
in middle of
D.
under
【单选题】—— Where did Mary’s parents buy the beautiful vase? —— It was in the same village _______ they spent their holidays last year.
A.
that
B.
when
C.
as
D.
where
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