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【单选题】
某混凝土梁的跨度为6.3m,采用木模板,钢支柱支模时其跨中起拱高度可为( )A.
mm
B.
mm
C.
mm
D.
2mm
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A.
with which
B.
in which
C.
on which
D.
for which
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A.
They feel content with their progress.
B.
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C.
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D.
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【单选题】A good advertisement often uses words ________ people attach positive meanings.
A.
that
B.
to which
C.
with which
D.
which
【简答题】Matche the words with their explanations.
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