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【单选题】
原材料为液态材料的快速成型工艺为( )。A.
SLS
B.
SLA
C.
LOM
D.
FDM
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举一反三
【单选题】It was not until recently ( ) we learned the famous film star would marry that politician.
A.
when
B.
which
C.
that
D.
then
【单选题】It was not until the scientist died________we appreciated the true significance of his discoveries. [ ]
A.
after
B.
before
C.
when
D.
that
【单选题】It was not until an hour later that we heard ______ what had happened.
A.
through
B.
by
C.
about
D.
from
【单选题】It was not until we _________ your e-mail that we knew the goods had already been delivered.
A.
have got
B.
had got
C.
get
D.
would get
【简答题】我们相信销售代表会议将准时开始。(on schedule)
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