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【简答题】
冶金炉系统中的气体主要是空气和烟气，其特点是[填空(1)] ，常温或高温，可近似看成[填空(2)] 。
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皮皮学刷刷变学霸
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【单选题】The teachers in our school have a meeting every Wednesday , there is nothing to discuss .
A.
when
B.
if
C.
unless
D.
since
【单选题】I prefer a school ______teachers have to work as a team, instead of fighting against each other.
A.
where
B.
that
C.
as
D.
when
【简答题】You have been in a new school for months and have made new friends and met new teachers. Describe one of them who gives you the most unforgetable impression and using your experience ,explain why and ...
【单选题】The school board has _____ teachers to spare no effort to help the students who have fallenbehind in studies.
A.
looked into
B.
turned into
C.
called for
D.
cared for
【简答题】目前对冠心病尚无特殊的有效疗法,必须采用综合性的治疗方法。
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